Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 77

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A longitudinal travelling wave transports,

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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 87

The number of waves, contained in unit length of the medium, is called

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 89

The equation of a wave is given by

y = 10 \sin (\frac{2 π t}{30} + α)

. If the displacement is

5 cm

at

t = 0

, then the total phase at

t = 7.5 s

will be,

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 91

A plane wave is represented by,

x = 1.2 \sin (314 t + 12.56 y)

where,

x

and

y

are distances measured along the

x

and

y

directions in

meters

and

t

is time in

seconds

. This wave has,

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 102

The graph shows three waves which are separately sent along a string that is stretched under a certain tension along the $x$ -axis. If $ω_{1}, ω_{2}$ and $ω_{3}$ are their angular frequencies, respectively, then,

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 103

Which of the following function correctly represent the travelling wave equation for finite values of

x

and

t

?

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 112

A wave

y = 10 \sin (a x + b t)

is reflected from a dense medium at an origin. If

81 %

of energy is reflected then the equation of reflected wave is-

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 113

Two-wire of length

1 m

and

2 m

, respectively, and mass

150 gm

and

300 gm

, respectively. If the tensions are the same on both the wires, the ratio of velocities of transverse waves will be

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 116

If vibrations of a string are to be increased by a factor of two, then tension in the string must be made