When a string is divided into three segments of lengths l 1 , l 2 and l 3 the fundamental frequencies of these three segments are ν 1 , ν 2 and ν 3 respectively. The original fundamental frequency ν of the string is

1 ν = 1 ν 1 + 1 ν 2 + 1 ν 3

A travelling harmonic wave is represented by the equation y x , t = 10 - 3 sin 50 t + 2 x , where x and y are in meter and t is in seconds. Which of the following is a correct statement about the wave?

The wave is propagating along the negative x -axis with speed 25 m s - 1

The wave is propagating along the positive x -axis with speed 25 m s - 1

The wave is propagating along the positive x -axis with speed 100 m s - 1

The wave is propagating along the negative x -axis with speed 100 m s - 1

E M B I B E

Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-4>Q 27

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Two wave pulses travel in opposite directions on a string and approach each other. The shape of one pulse is inverted with respect to the other.

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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 1

When sound wave is refracted from air to water, which of the following will remain unchanged?

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Alpha Question Bank for Medical: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 2

A piece of cork is floating on water in a small tank. The cork oscillates up and down vertically when small ripples pass over the surface of the water. The velocity of the ripples being $0.21 {m s}^{- 1}$ , wavelength $15 mm$ and amplitude $5 mm$ , the maximum velocity of the piece of cork is