1

JEE Advanced 2018 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-2

In an experiment to measure the speed of sound by a resonating air column, a tuning fork of frequency $$500$$ $$Hz$$ is used. The length of the air column is varied by changing the level of water in the resonance tube. Two successive resonances are heard at air columns of length $$50.7$$ $$cm$$ and $$83.9$$ $$cm.$$ Which of the following statements is (are) true?

2

JEE Advanced 2017 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-1

A block $$M$$ hangs vertically at the bottom end of a uniform rope of constant mass per unit length. The top end of the rope is attached to fixed rigid support at $$O.$$ A transverse wave pulse (Pulse 1) of wavelength $${\lambda _0}$$ is produced at point $$O$$ on the rope. The pulse takes time $${T_{OA}}$$ to reach point $$A.$$ If the wave pulse of wavelength $${\lambda _0}$$ is produced at point $$A$$ (Pulse 2) without disturbing the position of $$M$$ it takes time $${T_{AO}}$$ to reach point $$O.$$ which of the following options is/are correct?

3

JEE Advanced 2016 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-2

Two loudspeakers M and N are located 20m apart and emit sound at frequencies 118 Hz and 121 Hz, respectively. A car in initially at a point P, 1800 m away from the midpoint Q of the line MN and moves towards Q constantly at 60 km/h along the perpendicular bisector of MN. It crosses Q and eventually reaches a point R, 1800 m away from Q.

Let v(t) represent the beat frequency measured by a person sitting in the car at time t. Let v

Let v(t) represent the beat frequency measured by a person sitting in the car at time t. Let v

_{P}, v_{Q}and v_{R}be the beat frequencies measured at locations P, Q and R respectively. The speed of sound in air is 330 ms^{$$-$$1}. Which of the following statement(s) is (are) true regarding the sound heard by the person?4

JEE Advanced 2014 Paper 1 Offline

MCQ (More than One Correct Answer)

+3

-0

One end of a taut string of length 3 m along the x-axis is fixed at x = 0. The speed of the waves in the string is 100 ms

^{$$-$$1}. The other end of the string is vibrating in the y-direction so that stationary waves are set up in the string. The possible waveform(s) of these stationary wave is (are)Questions Asked from Waves (MCQ (Multiple Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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