A radar sends a signal to an aeroplane at a distance 45 km away with a speed of 3 - 108 m - s- The time interval after which the signal will be received back from the Aeroplane is-A- 3 - 10-4 sB- 1-5 - 10-4 sC- 5 - 10-4 sD- 6 - 10-4 s

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Standard X

Physics

Doppler Effect

A radar sends...

Question

A radar sends a signal to an aeroplane at a distance 45 km away with a speed of 3 x 10⁸ m/s.

The time interval after which the signal will be received back from the Aeroplane is:

3 x 10 ^-4 s

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6 x 10 ^-4 s

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1.5 x 10 ^-4 s

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5 x 10 ^-4 s

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Solution

The correct option is A
3 x 10 ^-4 s

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A radar sends a signal to an aeroplane at a distance 45 km away with a speed of 3 x 108 m/s. The time interval after which the signal will be received back from the Aeroplane is:

The correct option is A 3 x 10 -4 s

A radar sends a signal to an aeroplane at a distance 45 km away with a speed of 3 x 10⁸ m/s.

The time interval after which the signal will be received back from the Aeroplane is:

The correct option is A
3 x 10 ^-4 s