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

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

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

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

6 x 10 ^-4 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.5 x 10 ^-4 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

5 x 10 ^-4 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

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

Suggest Corrections

Similar questions

Q. A RADAR sends a signal to an aeroplane at a distance 45 km away with a speed of

3 \times 10^{8} m s^{- 1}

. After how much time is the signal received back from the aeroplane ?

A RADAR sends a signal to an aeroplane at a distance 300 km away, with a speed of $3 \times 10^{8} m s^{- 1}$ . After how much time is the signal received back after reflecting from the aeroplane?

Q. A radar sends a signal to an aircraft at a distance of

30 k m

away and receives it back after

2 \times 10^{- 4}

second. What is the speed of the signal?

A radar is able to detect the reflected waves from an enemy aeroplane, after a time interval of 0.02 milliseconds.

If the velocity of the wave is 3 x 10⁸ m s^-1, the distance of the plane from the radar station is:

Radar is able to detect the reflected waves from an enemy aeroplane after a time interval of 0.02ms. If the velocity of the waves is 3 x 10⁸ms^-1, how far is the plane from the radar?

Join BYJU'S Learning Program

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