Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 16

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Which of the following is not the equation of standing wave?

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Important Questions on Waves

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 17

If equation of a wave in a string is given as

y = 2 \cos (\frac{2 π}{3} x + \frac{π}{4}) \sin (50 π t + \frac{π}{3})

, (where

x

and

y

are in

cm

and

t

is in sec), then phase difference between two particles on the string, one at

x = \frac{3}{9} cm

and other at

x = \frac{30}{9} cm

is

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 1

The equation of a wave, giving the displacement

y

is given by

y = 10^{- 3} \sin (120 t + 3 x)

where,

x

and

y

are in metre and

t

is in second. This equation represents a wave

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 3

A transverse sinusoidal wave of amplitude

a

, wavelength

λ

and frequency

f

is travelling on a stretched string. The maximum speed of any point on the string is

\frac{V}{10}

, where

V

is the speed of propagation of the wave. If

a = 10^{- 3} m

and

V = 10 m s^{- 1}

then

λ

and

f

are given by

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 4

The string shown in the figure has a sinusoidal wave travelling towards right The frequency of the wave is

n .

The correct statement(s) is/are
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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 5

The figure shows a transverse wave travelling in a string in negative

x

-axis direction. Three points

A, B

and

C

are indicated on the string at the instant shown
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The correct statement(s) is/are

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 6

As a wave propagates

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 7

The velocity of sound in air is

340 {ms}^{- 1} .

A pipe closed at one end has a length of

170 cm .

Neglecting the end correction, the frequencies at which the pipe can resonate are

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Gamma Question Bank for Engineering Physics>Chapter 14 - Waves>Assignment>Q 8

Two waves, whose equations are

y_{1} = 4 \sin (20 t - \frac{x}{3}) m

and

y_{2} = 3 \sin (20 t - \frac{x}{3}) m

are superposed in a medium. Now,