EASY
Earn 100

Draw a diagram depicting difference between loud sound and soft sound.

Important Questions on Sound

MEDIUM
Science>Physics>Sound>Characteristics of Vibrations

The given graph shows the displacement versus time relation for a disturbance travelling with velocity 1500 m/s. The wavelength of the disturbance will be

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Science>Physics>Sound>Characteristics of Vibrations
The frequency of radio waves from a certain radio station is 600 KHz. Its wavelength is
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Science>Physics>Sound>Characteristics of Vibrations
If the speed of wave is 350 m/s and its wavelength is 100 cm then the frequency of the wave will be
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Science>Physics>Sound>Characteristics of Vibrations
The velocity of sound wave in a given medium is V when its frequency is ν. The velocity, when the frequency changes to 5ν is :
HARD
Science>Physics>Sound>Characteristics of Vibrations
A ball is moving uniformly in a circular path of radius 1 m with a time period of 1.5 s. If the ball is suddenly stopped at t=8.3 s, the magnitude of the displacement of the ball with respect to its position at t=0 s is closest to:
MEDIUM
Science>Physics>Sound>Characteristics of Vibrations
Consider the following statements and select the correct alternative: Statement (A): The frequency of the sound wave whose wave length is 1.5 cm with speed 339 m/s is 22600 Hz. Statement (B): The given sound is audible to human beings.
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Science>Physics>Sound>Characteristics of Vibrations
When sound is refracted from air to water, which of the following will remain unchanged?
MEDIUM
Science>Physics>Sound>Characteristics of Vibrations

The linear distance between a consecutive compression and rarefaction in longitudinal wave is

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Science>Physics>Sound>Characteristics of Vibrations
On an average, a human heart is found to beat 72 times a minute. Its frequency and period are
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Science>Physics>Sound>Characteristics of Vibrations
A point particle is acted upon by a restoring force -kx3. The time period of oscillation is T when the amplitude is A. The time period for an amplitude 2A will be:
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Science>Physics>Sound>Characteristics of Vibrations
If the speed of wave is 250 m/s and its wavelength is 50 cm then the frequency will be:
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Science>Physics>Sound>Characteristics of Vibrations

A simple wave motion is represented by y=5sin⁡4πt+3cos⁡4πt. Its amplitude is

HARD
Science>Physics>Sound>Characteristics of Vibrations

For the wave shown in figure, calculate the frequency and wave length of the wave if its speed is 320 ms–1.

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Science>Physics>Sound>Characteristics of Vibrations
The speed of a wave in a medium is 760 ms-1.If 3600 waves are passing through a point in the medium in 2 minutes then its wavelength is 
MEDIUM
Science>Physics>Sound>Characteristics of Vibrations
Two different instruments (say, guitar and harmonium), playing the same music, their sound appears different though they play same frequency, because:
HARD
Science>Physics>Sound>Characteristics of Vibrations

The sound of same pitch and loudness are distinguished from one another by their

EASY
Science>Physics>Sound>Characteristics of Vibrations
The speed of sound in air at NTP is 332 m/s. If air pressure becomes four times the normal then the speed of sound waves will
MEDIUM
Science>Physics>Sound>Characteristics of Vibrations
What are acoustically measurable quantities related to pitch and loudness?
MEDIUM
Science>Physics>Sound>Characteristics of Vibrations
A transverse wave travels on a taut steel wire with a velocity of v when tension in it is 2.06×104N. When the tension is changed to T, the velocity changed to v2. The value of T is close to:
EASY
Science>Physics>Sound>Characteristics of Vibrations

The figure below shows pressure variation in two different sound waves in air with time at a given position. Both the figures are drawn to the same scale.

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Which of the following statement is true?