# Solved papers for JEE Main & Advanced JEE Main Online Paper (Held On 19 May 2012)

### done JEE Main Online Paper (Held On 19 May 2012)

• question_answer1) A uniform tube of length 60.5 cm is held vertically with its lower end dipped in water. A sound source of frequency 500 Hz sends sound waves into the tube. When the length of tube above water is 16 cm and again when it is 50 cm, the tube resonates with the source of sound. Two lowest frequencies (in Hz), to which tube will resonate when it is taken out of water, are (approximately).         JEE Main  Online Paper (Held On 19  May  2012)

A) 281,562

B)                        281,843

C)                        276,552

D)                        272,544

• question_answer2) The displacement $y(t)=A\sin (\omega t+\phi )$of a pendulum for $\phi =\frac{2\pi }{3}$ is correctly represented by     JEE Main  Online Paper (Held On 19  May  2012)

A)

B)

C)

D)