Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 121

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In stationary waves at nodes -

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Important Questions on Wave Motion on a String

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 122

The equation

y = 0.15 \sin 5 x \cos 300 t

, describes a stationary wave. The wavelength of the station any wave is

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 123

The length of a sonometer wire

A B

is

110 cm

. Where, should the two bridges be placed from

A

to divide the wire in

3

segments whose fundamental frequencies are in the ratio of

1 : 2 : 3

?

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 124

There are some points in a stationary waves which -

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 125

The tension in a piano wire is $10$ $\mathrm{N}$. What should be the tension in the wire in order to produce a node having double the frequency?

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 126

The equation of a stationary wave is

y = 0.8 \cos (\frac{π x}{20}) \sin 200 π t

, where

x

is in

cm

and

t

is in second. The separation between the consecutive nodes will be

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 127

A wave represented by the equation

y = a \cos (kx - ωt)

is superposed with another wave to form a stationary wave such that the point.

x = 0

is a node. The equation for the other wave is :

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 128

In a stationary wave, all particles are

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 129

A plane wave is described by the equation

y = 3 \cos (\frac{x}{4} - 10 t - \frac{π}{2}) .

The maximum velocity of the particles of the medium due to this wave is -