Physics · JEE

Important Questions: Wave motion, longitudinal and transverse waves, speed of the travelling wave, displacement relation for a progressive wave for JEE

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Part of Oscillations and Waves in JEE Main Physics.

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Q1PhysicsUnit 10: Oscillations and Waves

When sound wave is refracted from air to water, which of the following will remain unchanged?

Q2PhysicsUnit 10: Oscillations and Waves

A rubber string is tied to a nail on the wall. The rubber string is pulled gently to stretch slightly. Which of the following phenomena may occur after the release of the string?

Q3PhysicsUnit 10: Oscillations and Waves

A sonar device on a submarine send out a signal and receives an echo 5 seconds later. Calculate the speed of sound in water, if the distance of the object from the submarine is

3625 \mathrm{m}

Q4PhysicsUnit 10: Oscillations and Waves

Assertion In a motion picture, the consecutive frames are almost the same and quickly switched. Reason In the retina of human eyes these continuous images get fused into one another

Q5PhysicsUnit 10: Oscillations and Waves

On changing of medium, remains same.

Q6PhysicsUnit 10: Oscillations and Waves

When a sound is going away from a stationary observer with the velocity equal to that of sound in air, then the frequency heard by observer is n times the original frequency. The value of n is

Q7PhysicsUnit 10: Oscillations and Waves

A train is approaching towards a platform with a speed of

10 m s^{-1}

while blowing a whistle of frequency

340 \mathrm{Hz}

What is the frequency of whistle heard by a stationary observer on the platform? Given speed of sound

=340 m s^{-1}

Q8PhysicsUnit 10: Oscillations and Waves

Which statement about light waves and sound waves is correct?

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