EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 20 - Wave Motion on a String>KEAM 2018>Q 4

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KEAM

IMPORTANT

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A wave pulse in a string is described by the equation $y_{1} = \frac{5}{{(3 x - 4 t)}^{2} + 2}$ and another wave pulse in the same string is described by $y_{2} = \frac{- 5}{{(3 x + 4 t - 6)}^{2} + 2}$ . The values of $y_{1}, y_{2}$ and $x$ are in metres and $t$ is in seconds. Which of the following statement is correct?

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Important Questions on Wave Motion on a String

EASY

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 20 - Wave Motion on a String>KEAM 2018>Q 5

The maximum transverse velocity and maximum transverse acceleration of a harmonic wave in a

o n e - d i m e n s i o n a l

string are

1 m s^{- 1}

and

1 m s^{- 2}

respectively. The phase velocity of the wave is

1 m s^{- 1}

. The waveform is

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KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 20 - Wave Motion on a String>KEAM 2018>Q 6

The displacement

y

of a particle, if given by

y = 4 \cos^{2} (\frac{t}{2}) \sin (1000 t) .

This expression may be considered to be a result of the superposition of how many simple harmonic motions?

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KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 20 - Wave Motion on a String>KEAM 2020>Q 7

Two strings of the same material and same length are given equal tension. If they are vibrating with fundamental frequencies

1600 Hz

and

900 Hz,

then the ratio of their respective diameters is