Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 10

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The equation of travelling wave is $y = a \sin 2 π (p t - \frac{x}{5})$ Then the ratio of maximum particle velocity to wave velocity is

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Important Questions on Waves

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 11

A travelling wave pulse is given by

y = \frac{4}{3 x^{2} + 48 t^{2} + 24 x t + 2}

where

x

and

y

are in metre and

t

is in second. The velocity of wave is

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 12

The ratio of maximum particle velocity to wave velocity is [where symbols have their usual meanings]

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 13

What is the phase difference between the displacement wave and pressure wave in sound wave?

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 14

The ratio of intensities between two coherent sound sources is

4 : 1 .

The difference of loudness in

d B

between maximum and minimum intensities when they interfere in the space is

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 15

The intensity of sound reduces by

20 %

on passing through a glass slab. If sound of intensity

I

is made to cross through two such slabs, then the intensity of emergent sound will be

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 16

Two periodic waves of intensities

I_{1}

and

I_{2}

pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is :

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 17

If the intensity of sound is increased by a factor of $30$ , by how many decibels is the sound level increased?

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 18

A stationary wave is represented by

y = A \sin (100 t) \cos (0.01 x)

, where

y

and

A

are in millimetres,

t

is in second and

x

is in metre. The velocity of the constituent wave is