Q1PhysicsUnit 10: Oscillations and Waves
When sound wave is refracted from air
to water, which of the following will remain unchanged?
Physics · JEE
Easy Wave motion, longitudinal and transverse waves, speed of the travelling wave, displacement relation for a progressive wave MCQs for JEE
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Syllabus context
Part of Oscillations and Waves in JEE Main Physics.
- Oscillations and periodic motion: time period, frequency, displacement as a function of time, periodic functions
- Simple harmonic motion (S.H.M.) and its equation, phase
- Oscillations of a spring: restoring force and force constant
- Energy in S.H.M.: kinetic and potential energies
- Simple pendulum: derivation of expression for its time period
- Wave motion, longitudinal and transverse waves, speed of the travelling wave, displacement relation for a progressive wave
- Principle of superposition of waves, reflection of waves, standing waves in strings and organ pipes, fundamental mode and harmonics, beats
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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
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 while blowing a whistle of frequency
What is the frequency of whistle heard by a stationary observer on the platform? Given speed of sound
Q8PhysicsUnit 10: Oscillations and Waves
Which statement about light waves and
sound waves is correct?
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