Radar waves are sent towards a moving aeroplane and the reflected waves are received by Radar. When aeroplane is moving towards Radar, then wavelength of the reflected wave will

Increase

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Decrease

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Remains same

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Increase or Decrease

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Solution

The correct option is A Decrease
Whenever distance decreases, apparent frequency increases and hence apparent wavelength decreases.

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Radar waves are sent towards a moving aeroplane and the reflected waves are received by Radar. When aeroplane is moving towards Radar, then wavelength of the reflected wave will

The correct option is A DecreaseWhenever distance decreases, apparent frequency increases and hence apparent wavelength decreases.

The correct option is A Decrease
Whenever distance decreases, apparent frequency increases and hence apparent wavelength decreases.