A) \[2\pi \sqrt{\frac{m}{{{K}_{1}}+{{K}_{2}}}}\] done clear
B) \[2\pi \sqrt{\frac{m\sin \theta }{{{K}_{1}}+{{K}_{2}}}}\] done clear
C) \[2\pi \sqrt{\frac{m({{K}_{1}}+{{K}_{2}})}{{{K}_{1}}{{K}_{2}}}}\] done clear
D) \[2\pi \sqrt{\frac{m\sin \theta ({{K}_{1}}+{{K}_{2}})}{{{K}_{1}}{{K}_{2}}}}\] done clear
View Answer play_arrowA) The brightness of A increases & that of B decreases done clear
B) the brightness of A doesn't change & that of B decreases done clear
C) the brightness of both A & B decreases done clear
D) the brightness of A increases and that of B does not change done clear
View Answer play_arrowA) zero done clear
B) \[u\frac{\Delta m}{\Delta t}\] done clear
C) \[\Delta m\times \frac{du}{dt}\] done clear
D) \[u\frac{\Delta m}{\Delta t}+\Delta m\times \frac{du}{dt}\] done clear
View Answer play_arrowA) lf\[\sigma <\rho \] the string will slack and block sinks done clear
B) If \[\sigma <\rho \] the string is taut done clear
C) if \[\sigma >\rho \] the string is taut done clear
D) If \[\sigma >\rho \]the string is taut and tension in string is\[\frac{\sigma -\rho }{\rho }\times mg\] done clear
View Answer play_arrowA) \[\frac{{{K}_{1}}}{{{K}_{2}}}=\frac{{{\rho }_{1}}{{s}_{1}}}{{{\rho }_{2}}{{s}_{2}}}\] done clear
B) \[\frac{{{K}_{1}}}{{{K}_{2}}}=\frac{{{\rho }_{1}}{{s}_{2}}}{{{\rho }_{2}}{{s}_{1}}}\] done clear
C) \[\frac{{{K}_{1}}}{{{K}_{2}}}=\frac{{{\theta }_{1}}}{{{\theta }_{2}}}\] done clear
D) \[{{K}_{1}}={{K}_{2}}\] done clear
View Answer play_arrowA) \[{{F}_{4}}>{{F}_{2}}\] done clear
B) \[{{\overrightarrow{F}}_{3}}=-{{\overrightarrow{F}}_{4}}\] done clear
C) \[{{F}_{2}}>{{F}_{1}}\] done clear
D) \[{{\overrightarrow{F}}_{2}}=-{{\overrightarrow{F}}_{4}}\] done clear
View Answer play_arrowA) the angular velocity of the rod is \[\frac{3J}{m\ell }\] done clear
B) the angular momentum of the rod is\[J\ell \] done clear
C) the linear velocity of mid point of the rod done clear
D) all the above done clear
View Answer play_arrowA) radio waves done clear
B) infrared waves done clear
C) microwaves done clear
D) \[\text{ }\!\!\gamma\!\!\text{ -}\]rays done clear
View Answer play_arrowA) \[\frac{mg}{IL}\sin \theta \] done clear
B) \[\frac{mg}{IL}\cos \theta \] done clear
C) \[\frac{mg}{IL}\tan \theta \] done clear
D) \[\frac{mg}{IL}\sec \theta \] done clear
View Answer play_arrowA) 11460 years done clear
B) 17190 years done clear
C) 22920 years done clear
D) 45840 years done clear
View Answer play_arrowA) 100 done clear
B) 54 done clear
C) 3.6 done clear
D) 8.2 done clear
View Answer play_arrowA) 5 done clear
B) 3 done clear
C) 7 done clear
D) 3 done clear
View Answer play_arrowA) \[\frac{\sigma }{{{\in }_{0}}}\times \frac{{{r}_{1}}}{{{r}_{2}}}\] done clear
B) \[\frac{\sigma }{{{\in }_{0}}}\times \frac{{{r}_{2}}}{{{r}_{1}}}\] done clear
C) \[\frac{\sigma }{{{\in }_{0}}}({{r}_{1}}-{{r}_{2}})\] done clear
D) \[\frac{\sigma }{{{\in }_{0}}}({{r}_{1}}+{{r}_{2}})\] done clear
View Answer play_arrowA) \[t{{ & }_{1}}>{{t}_{2}}\] done clear
B) \[t{{ & }_{1}}={{t}_{2}}\] done clear
C) \[t{{ & }_{1}}<{{t}_{2}}\] done clear
D) Information is insufficient done clear
View Answer play_arrowA) I = 2 mA at all time t done clear
B) I oscillates between 1 mA & 2mA done clear
C) 1= 1mA at all time t done clear
D) At t = 0,l = 2mA & with time it goes to 1 mA done clear
View Answer play_arrowA) \[\sqrt{\frac{5}{3}}\] done clear
B) \[\sqrt{\frac{8}{3}}\] done clear
C) \[\sqrt{\frac{3}{8}}\] done clear
D) \[\sqrt{\frac{3}{5}}\] done clear
View Answer play_arrowA) \[-\frac{GM}{L}\] done clear
B) \[-\frac{GM}{2\pi L}\] done clear
C) \[-\frac{\pi GM}{2L}\] done clear
D) \[-\frac{\pi GM}{L}\] done clear
View Answer play_arrowA) 0.987 done clear
B) 75.92 done clear
C) 1.006 done clear
D) 79.68 done clear
View Answer play_arrowA) 1s done clear
B) 0.5s done clear
C) 2s done clear
D) 1.5s done clear
View Answer play_arrowA) \[{{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)\] done clear
B) \[{{\tan }^{-1}}\left( \sqrt{3} \right)\] done clear
C) \[{{\tan }^{-1}}\left( \sqrt{\frac{3}{2}} \right)\] done clear
D) \[{{\tan }^{-1}}\left( \frac{2}{\sqrt{3}} \right)\] done clear
View Answer play_arrowquestion_answer21) The modulus of rigidity of a liquid is
A) 0 done clear
B) 1 done clear
C) \[\infty \] done clear
D) none of these done clear
View Answer play_arrowA) \[\frac{V}{16}\] done clear
B) \[\frac{V}{17}\] done clear
C) \[\frac{16V}{17}\] done clear
D) \[\frac{17V}{16}\] done clear
View Answer play_arrowA) \[\frac{GmM}{2{{(R+h)}^{2}}}\] done clear
B) \[\frac{GmM}{4{{(R+h)}^{2}}}\] done clear
C) \[\frac{GmM}{2(R+h)}\] done clear
D) \[\frac{GmM}{4(R+h)}\] done clear
View Answer play_arrowA) \[5\text{ }l\text{ }and\text{ }l\] done clear
B) \[5\text{ }l\text{ }and\text{ 3}l\] done clear
C) \[\text{9 }l\text{ }and\text{ }l\] done clear
D) \[\text{9}l\text{ }and\text{ 3}l\] done clear
View Answer play_arrowA) \[P=\frac{{{E}_{0}}{{l}_{0}}}{\sqrt{2}}\] done clear
B) \[P=zero\] done clear
C) \[P=\frac{{{E}_{0}}{{l}_{0}}}{2}\] done clear
D) \[P=\sqrt{2}{{E}_{0}}{{l}_{0}}\] done clear
View Answer play_arrowA) \[{{F}_{1}}\] done clear
B) \[{{F}_{2}}\] done clear
C) \[{{F}_{1}}+{{F}_{2}}\] done clear
D) \[{{F}_{1}}-{{F}_{2}}\] done clear
View Answer play_arrowA) 1 done clear
B) 2 done clear
C) 3 done clear
D) 4 done clear
View Answer play_arrowquestion_answer28) What is the output Y of the gate combination shown
A) \[\overline{A}+\overline{B}\] done clear
B) \[\overline{\overline{A}+\overline{B}}\] done clear
C) \[\overline{A+B}\] done clear
D) \[A+B\] done clear
View Answer play_arrowA) done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowA) initial current through the battery is \[\frac{1}{15}A\] done clear
B) initial potential difference across the inductor is \[\frac{2}{3}\]volt done clear
C) final current through \[10\Omega \]resistor is zero done clear
D) final current through \[20\Omega \] resistor is ?A done clear
View Answer play_arrowA) \[1.032\times {{10}^{22}}\] done clear
B) \[3.01\times {{10}^{22}}\] done clear
C) \[5.88\times {{10}^{23}}\] done clear
D) \[6.023\times {{10}^{23}}\] done clear
View Answer play_arrowA) Less than 0.1% of 22.4 litres done clear
B) About 10% of the volume of the container of 22.4 litres done clear
C) Between 10% to 20% of 22.4 litres done clear
D) Between 2% to 5% of 22.4 litres done clear
View Answer play_arrowA) involved van der Waals forces are universal done clear
B) gases involved behave like ideal gases done clear
C) enthalpy of adsorption is low done clear
D) it is a reversible process done clear
View Answer play_arrowquestion_answer34) Which of the organic compounds will give red colour in Lassaigne's test?
A) \[NaCN\] done clear
B) \[\overset{\begin{smallmatrix} S \\ || \end{smallmatrix}}{\mathop{N{{H}_{2}}-C-N{{H}_{2}}}}\,\] done clear
C) \[\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{N{{H}_{2}}-C-N{{H}_{2}}}}\,\] done clear
D) None of these done clear
View Answer play_arrowA) o - Cresol done clear
B) p - Cresol done clear
C) 1, 3, 5 - Trihydroxytoluene done clear
D) Benzoic acid done clear
View Answer play_arrowA) \[11.2L{{H}_{2(g)}}\] at STP is produced for every mole of \[HC{{l}_{(ag)}}\] consumed. done clear
B) \[6LHC{{l}_{(aq)}}\]is consumed for every 3L H2(g) produced done clear
C) \[33.6L\,{{H}_{2}}_{(g)}\] is produced regardless of temperature and pressure for every mole of Al that reacts. done clear
D) \[67.2L\,{{H}_{2}}_{(g)}\] at STP is produced for every mole of Al that reacts. done clear
View Answer play_arrowquestion_answer37) Which of the following is not correct?
A) Dissolution of \[N{{H}_{4}}Cl\] in excess of water is an endothermic process. done clear
B) Neutralisation is always exothermic done clear
C) The absolute value of enthalpy (H) can be determined experimentally done clear
D) The heat of reaction at constant volume denoted by\[\Delta E.\] done clear
View Answer play_arrowA) \[{{O}_{2}}\] and CO respectively done clear
B) \[{{O}_{2}}\] and Zn dust respectively done clear
C) \[HN{{O}_{3}}\] and Zn dust respectively done clear
D) \[HN{{O}_{3}}\] and CO respectively done clear
View Answer play_arrowA) \[BrC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\] done clear
B) \[HSC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}SH\] done clear
C) \[BrC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}{{S}^{-}}N{{a}^{+}}\] done clear
D) done clear
View Answer play_arrowquestion_answer40) The structure of \[\text{I}{{\text{F}}_{\text{7}}}\] is
A) pentagonal bipyramid done clear
B) square pyramid done clear
C) trigonal bipyramid done clear
D) octahedral done clear
View Answer play_arrowA) \[2.7x{{10}^{4}}C\] done clear
B) \[8.8x{{10}^{4}}C\] done clear
C) \[18.3x{{10}^{4}}C\] done clear
D) \[1.7x{{10}^{4}}C\] done clear
View Answer play_arrowA) 0.1624 nm done clear
B) 0.1246 nm done clear
C) 0.2164 nm done clear
D) 0.1426 nm done clear
View Answer play_arrowA) I and IV only done clear
B) II, III and IV only done clear
C) I, III and IV only done clear
D) All of these done clear
View Answer play_arrowquestion_answer44) The electronegativity of the following elements increases in the order
A) C, N, Si. P done clear
B) N, Si, C, P done clear
C) Si, P, C, N done clear
D) P, Si, N, C done clear
View Answer play_arrowColumn - I | Column - II |
(a) Hall-Heroult | (q) Molten \[A{{l}_{2}}{{O}_{3}}+N{{a}_{3}}Al{{F}_{6}}\]electrolysis |
(b)Dow?s sea water process | (q) Molten \[MgC{{l}_{2}}+CaC{{l}_{2}}+NaCl\]electrolysis |
(c) Hoop?s process | (r) Molten impure aluminium + fluorides of \[N{{a}^{+}},B{{a}^{2+}}\]and\[A{{l}^{3+}}\]electrolysis |
(d) Mac-Arthur Forrest process | (s) Complex formation and displacements method |
A) a-p b-q c-r d-s done clear
B) a-r b-q c-s d-p done clear
C) a-q b-p c-r d-s done clear
D) a-s b-r c-q d-p done clear
View Answer play_arrowquestion_answer46) End product of the following sequence of reaction is
A) Yellow precipitate of done clear
B) Yellow precipitate of done clear
C) Yellow precipitate of done clear
D) Yellow precipitate of done clear
View Answer play_arrowColumn I (Oxy acids of phosphoros) | Column II (Characteristic bonds) |
\[{{H}_{4}}{{P}_{2}}{{O}_{7}}\] | (p) P - P bond(s) |
\[{{H}_{4}}{{P}_{2}}{{O}_{5}}\] | (q) P - 0 - P bond (s) |
\[{{H}_{4}}{{P}_{2}}{{O}_{6}}\] | (r) P - H bond(s) |
\[{{(HP{{O}_{3}})}_{n}}\] (cyclic) | (s) Three or four P - OH bonds |
A) \[A\to q,r;B\to q,r,s;C\to p,s;D\to q,s\] done clear
B) \[A\to q,s;B\to q,r;C\to p,s;D\to q,s\] done clear
C) \[A\to q,s;B\to q,r,s;C\to p,q;D\to r,s\] done clear
D) \[A\to q,r;B\to q,s;C\to r,s;D\to p,q\] done clear
View Answer play_arrowA) \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{3+}}\] done clear
B) \[{{[Fe{{(CN)}_{6}}]}^{3-}}\] done clear
C) \[{{[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\] done clear
D) \[{{[FeC{{l}_{6}}]}^{3-}}\] done clear
View Answer play_arrowquestion_answer49) In which of the following metallic bond is strongest?
A) V done clear
B) Fe done clear
C) Cr done clear
D) Sc done clear
View Answer play_arrowquestion_answer50) The enolic form of acetone contains
A) 9 sigma bonds, 1 pi bond and 2 lone pairs done clear
B) 8 sigma bonds, 2 pi bond and 2 lone pairs done clear
C) 10 sigma bonds, 1 pi bond and 1 lone pairs done clear
D) 9 sigma bonds, 2 pi bond and 1 lone pairs done clear
View Answer play_arrowquestion_answer51) Identify the compound that exhibits tautomerism
A) Phenol done clear
B) 2 - Butene done clear
C) Lactic acid done clear
D) 2 ? Pentanone done clear
View Answer play_arrowquestion_answer52) The blue liquid formed by equimolar mixture of two gases at \[-30{}^\circ C\]is
A) \[{{N}_{2}}O\] done clear
B) \[{{N}_{2}}{{O}_{3}}\] done clear
C) \[{{N}_{2}}{{O}_{4}}\] done clear
D) \[{{N}_{2}}{{O}_{5}}\] done clear
View Answer play_arrowquestion_answer53) Among the following, the strongest base is
A) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\] done clear
B) \[p-N{{O}_{2}}{{C}_{6}}{{H}_{4}}N{{H}_{2}}\] done clear
C) \[m-N{{O}_{2}}-{{C}_{6}}{{H}_{4}}N{{H}_{2}}\] done clear
D) \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}N{{H}_{2}}\] done clear
View Answer play_arrowquestion_answer54) The correct acidity order of the following is
A) \[III>IV>II>I\] done clear
B) \[IV>III>I>II\] done clear
C) \[III>II>I>IV\] done clear
D) \[II>III>IV>I\] done clear
View Answer play_arrowA) \[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,-\underset{{}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,H-C{{H}_{2}}C{{H}_{3}}\] done clear
B) done clear
C) done clear
D) done clear
View Answer play_arrowA) 90 done clear
B) 200 done clear
C) 180 done clear
D) 380 done clear
View Answer play_arrowA) \[R-\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{{{N}^{+}}}}}\,-S{{O}_{2}}{{C}_{6}}{{H}_{5}}O{{H}^{-}}\] done clear
B) \[R-{{N}^{-}}S{{O}_{2}}{{C}_{6}}{{H}_{5}}{{K}^{+}}\] done clear
C) \[{{C}_{6}}{{H}_{5}}S{{O}_{2}}N{{H}_{2}}\] done clear
D) \[R-NH-S{{O}_{2}}-{{C}_{6}}{{H}_{5}}\] done clear
View Answer play_arrowA) \[{{\left( \underset{\begin{smallmatrix} | \\ CN \end{smallmatrix}}{\mathop{-C{{H}_{2}}-CH-}}\, \right)}_{n}}\] done clear
B) \[{{\left( -C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ COOC{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,- \right)}_{n}}\] done clear
C) \[{{\left( -C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ COO{{C}_{2}}{{H}_{5}} \end{smallmatrix}}{\mathop{CH-}}\, \right)}_{n}}\] done clear
D) \[{{\left( \overset{\begin{smallmatrix} -C{{H}_{2}}-CH- \\ | \end{smallmatrix}}{\mathop{Cl}}\, \right)}_{n}}\] done clear
View Answer play_arrowquestion_answer59) X and Y in the following reactions are
A) done clear
B) done clear
C) done clear
D) \[x=RR'C{{H}_{2}}CN,Y=NaOH\] done clear
View Answer play_arrowA) large number of mosquitoes done clear
B) increase in the amount of dissolved oxygen done clear
C) decrease in the amount of dissolved oxygen in water done clear
D) clogging of gills by mud done clear
View Answer play_arrowA) 19 done clear
B) 20 done clear
C) 21 done clear
D) 22 done clear
View Answer play_arrowA) \[(2,-1)\] done clear
B) \[(2,2)\] done clear
C) \[(2,1)\] done clear
D) \[\left( \frac{3}{2},\frac{-3}{2} \right)\] done clear
View Answer play_arrowA) \[(2+\sqrt{2})+i\left( 1-\frac{1}{\sqrt{2}} \right)\] done clear
B) \[(2+\sqrt{2})+i\left( 1+\frac{1}{\sqrt{2}} \right)\] done clear
C) \[(2-\sqrt{2})+i\left( 1-\frac{1}{\sqrt{2}} \right)\] done clear
D) \[(2-\sqrt{2})+i\left( 1+\frac{1}{\sqrt{2}} \right)\] done clear
View Answer play_arrowquestion_answer64) Minimum number of zeroes in upper triangular, matrix of order 15 is
A) 105 done clear
B) 120 done clear
C) 110 done clear
D) 112 done clear
View Answer play_arrowStatement-1: If \[{{x}^{2}}+px+q\] is an integer for every odd integral value of x, then p & q are necessarily odd integers. |
Statement-2: Sum of two odd integers is an even integer |
A) Statement -1 is true, statement -2 is true and statement-2 is correct explanation for statement -1. done clear
B) Statement -1 is true, statement -2 is true and Statement-2 is NOT correct explanation for statement -1. done clear
C) Statement-1 is true, Statement-2 is false done clear
D) Statement-1 is false, statement -2 is true done clear
View Answer play_arrowA) \[100\sqrt{3}m\] done clear
B) \[\frac{100}{\sqrt{3}}m\] done clear
C) \[50\,m\] done clear
D) \[150(\sqrt{3}+1)m\] done clear
View Answer play_arrowA) \[\frac{19}{50}\] done clear
B) \[\frac{19}{100}\] done clear
C) \[\frac{31}{50}\] done clear
D) \[\frac{31}{100}\] done clear
View Answer play_arrowA) 2032 done clear
B) 4032 done clear
C) 8066 done clear
D) 8064 done clear
View Answer play_arrowA) 64 done clear
B) 625 done clear
C) 8064 done clear
D) 49 done clear
View Answer play_arrowA) \[\left( 0,\frac{\pi }{3} \right)\] done clear
B) \[\left( 0,\frac{\pi }{6} \right)\] done clear
C) \[\left( 0,\frac{\pi }{4} \right)\] done clear
D) \[\left( \frac{\pi }{4},\frac{\pi }{2} \right)\] done clear
View Answer play_arrowA) \[\sqrt{2}/2\] done clear
B) \[-\sqrt{2}/2\] done clear
C) 2 done clear
D) -2 done clear
View Answer play_arrowA) a done clear
B) \[\frac{a}{2}\] done clear
C) \[a\sqrt{2}\] done clear
D) \[\frac{a}{\sqrt{2}}\] done clear
View Answer play_arrowA) 0 done clear
B) 1 done clear
C) -1 done clear
D) 2 done clear
View Answer play_arrowA) \[\frac{{{\pi }^{2}}}{4}\] done clear
B) \[{{\pi }^{2}}\] done clear
C) \[\frac{5{{\pi }^{2}}}{4}\] done clear
D) \[\frac{3{{\pi }^{2}}}{2}\] done clear
View Answer play_arrowA) 3 done clear
B) 1 done clear
C) 2 done clear
D) None done clear
View Answer play_arrowA) 1 done clear
B) 4 done clear
C) 2 done clear
D) 3 done clear
View Answer play_arrowA) 22 done clear
B) 27 done clear
C) 24 done clear
D) 36 done clear
View Answer play_arrowA) \[{{x}^{2}}+Ax+2A=0\] done clear
B) \[{{x}^{2}}-2Ax+2A=0\] done clear
C) \[{{x}^{2}}-Ax+2A=0\] done clear
D) none of these done clear
View Answer play_arrowA) 10 done clear
B) 9 done clear
C) 19 done clear
D) None done clear
View Answer play_arrowA) 2, 4 or 8 done clear
B) 3, 6 or 9 done clear
C) 4 or 8 done clear
D) 5 or 10 done clear
View Answer play_arrowA) \[\frac{1}{24}\] done clear
B) \[\frac{1}{12}\] done clear
C) \[\frac{1}{6}\] done clear
D) \[\frac{1}{3}\] done clear
View Answer play_arrowA) 1/3 done clear
B) 1/5 done clear
C) 1/8 done clear
D) 1/9 done clear
View Answer play_arrowA) 4k+1 done clear
B) 2k+1 done clear
C) 2k-1 done clear
D) 4k-3 done clear
View Answer play_arrowA) 0 done clear
B) \[\frac{1}{2}\] done clear
C) 1 done clear
D) 2 done clear
View Answer play_arrowA) \[{{e}^{-2}}\] done clear
B) \[{{e}^{-1}}\] done clear
C) \[1-{{e}^{-1}}\] done clear
D) \[1-{{e}^{-2}}\] done clear
View Answer play_arrowA) 0 done clear
B) -1 done clear
C) 2 done clear
D) -4 done clear
View Answer play_arrowA) (a, b ) R (c,d) if ad (b + c) = be ( a + d) done clear
B) (a, b) R (c, d) if a + d = b + c done clear
C) (a,b) R (c,d) if ad = bc done clear
D) All the above done clear
View Answer play_arrowA) \[\{n\pi ,n\in Z\}\]and\[\frac{1}{2}\]\[\{n\pi +{{(-1)}^{n}}si{{n}^{-1}}(asinb)+b;n\in Z\}\] done clear
B) \[\{n\frac{\pi }{2},n\in Z)\]and\[\{n\pi +{{(-1)}^{n}}si{{n}^{-1}}(asinb);n\in Z\}\] done clear
C) \[\{n\frac{\pi }{2},n\in Z\}\]and\[\{n\pi +{{(-1)}^{n}}si{{n}^{-1}}(\frac{a}{2}sinb);n\in Z\}\] done clear
D) None of these done clear
View Answer play_arrowA) \[\left| \frac{a}{2}\sin b \right|<1\] done clear
B) \[\left| \frac{a}{2}\sin b \right|\le 1\] done clear
C) \[|a\sin b|\le 1\] done clear
D) None of these done clear
View Answer play_arrowA) \[b\in (-n\pi ,2n\pi ),n\in Z\] done clear
B) \[b\in (-n\pi ,2-n\pi ),n\in Z\] done clear
C) \[b\in (-n\pi ,n\pi ),n\in Z\] done clear
D) none of these done clear
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