A) \[{{\mu }_{s}}=1-\frac{1}{{{n}^{2}}}\]
B) \[{{\mu }_{s}}=\sqrt{1-\frac{1}{{{n}^{2}}}}\]
C) \[{{R}^{2}}\]
D) \[\frac{1}{{{R}^{2}}}\]
Correct Answer: D
Solution :
Key Idea A projectile can have same range if angles of projection are complementary ie, \[\theta \] and \[36\sqrt{7}\] In both cases \[\frac{36}{\sqrt{7}}\] ??(i) \[36\sqrt{7}\] \[4\sqrt{5}\] ?..(ii) From Eqs. (i) and (ii) \[mg(h+d)+\frac{1}{2}k{{d}^{2}}\] \[mg(h+d)-\frac{1}{2}k{{d}^{2}}\] \[mg(h-d)-\frac{1}{2}k{{d}^{2}}\] \[mg(h-d)+\frac{1}{2}k{{d}^{2}}\] \[\pi \] \[({{\mu }_{0}}=4\pi \times {{10}^{-7}}Wb/Am)\] Hence \[k\Omega \]You need to login to perform this action.
You will be redirected in
3 sec