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Wave Equation

If 20 waves a...

Question

If 20 waves are present in 1 cm, what is the wavelength of the wave

A

20

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B

200

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C

2000

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D

10

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Solution

The correct option is C 2000
The wave number is number of waves/metre = 20/0.01 = 2000 /m
The correct option is (c)

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