EASY
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While the refraction of sound wave which of the following properties of sound wave changes.

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Important Questions on Waves

EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave

A wave of frequency 500 Hz is travelling with a speed of 350 m/s. What is the phase difference between two displacements at a certain point at times 1.0 ms apart?

EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
How you can demonstrate the specular reflection of sound?
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
Sound waves speed up when they enter water. In air, the speed is about 330 m s-1, but in water the sound waves travel at about 1500 m s-1. Explain whether total internal reflection will occur when sound travels from air into water and from water into air.  Explain how this affects how well you can hear sounds above the surface of the water if you are under the surface. 
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Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
During refraction of light the frequency of the sound wave remains the same.
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
A travelling wave reaches the boundary of a denser medium. It is totally reflected back in the same medium. Which one of its following characteristics of the wave will change as it is reflected?
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Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
The locus of all particles in a medium, vibrating in the same phase is called
EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
A pulse of a wave train travels along a stretched string and reaches the fixed end of the string. It will be reflected with
HARD
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
When a longitudinal wave is incident at the boundary of denser medium, then
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
A wave travelling in a medium is reflected at the boundary point with the denser medium. It is partially transmitted and partially reflected. What will be the phase difference between the reflected and the transmitted wave?
EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
The phase change in reflected wave, when light wave suffers reflection at the interface from air to glass is 180°.
EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
Laws of refraction of sound wave is _____ to laws of refraction of light.
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
A light string is connected with a heavier string. A phase change of _____ degrees occurs when a pulse travelling through the string is reflected at its junction with a heavier string.
EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave

The phase difference between A and C in the wave as shown in the figure is
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MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
Describe the effect of temperature and wind on sound waves.
HARD
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
Explain, with neat diagrams, how sound waves are refracted due to variation of temperature and wind speed.
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
Explain specular reflection of sound? What are conditions to observe specular reflection? Mention one application of refeection of sound by curves surfaces.
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
Explain the reflection of sound waves from curved surface.
HARD
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
When a longitudinal wave is incident at the boundary of denser medium, then :
EASY
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
What is the maximum force action on the diaphragm ?
MEDIUM
Physics>Oscillations and Waves>Waves>Reflection and Refraction of a Wave
A wave travelling in the positive X-direction is given by the equation y=Asinωt-kx. The equation of the wave, when reflected at the boundary with the denser medium, will be y=Asinωt+kx. (Assume that there is no partial transmission of the wave through the boundary).