A radar operates at wavelength 50.0 cm. If the beat frequency between the transmitted singal and the singal reflected from aircraft `(Deltav)` is 1 kHz, then velocity of the aircraft will be :

A radar operates at a wavelength lambda = 50.0 cm . Find the velocity of an approaching aircraff if the beat frequency between the transmitted signal and the signal reflected form the aircraft is equal to Deltav = 1.00 kHz at the radar location.

Radio waves of frequency 600 MHz are sent by a radar towards an enemy aircraft. The frequency of the radio waves reflected from the aircraft as measured at the radar station is found to increase by 6 kHz. It follows that the aircraft is :

a 50 cm long string is clamped between two rigid supports. If the frequency of the fundamental tone emitted from the string is 200 Hz, what is the velocity of the transverse wave ?

The freqency of a radar is 780 M hz. The frequency of the reflected wave from an aerolane is increased by 2.6 kHz. The velocity of aeroplane is

Microwaves are reflected from a distant airplane approaching a stationary observer. It is found that when the reflected waves beat against the waves radiating from the source, the beat frequency is 900 Hz. Calculate the approach speed of the airplane if the wavelength of the microwave is 0.1 H. Velocity of microwave is 3 xx 10^(8)" m/s".

A car emitting sound of frequency 500 Hz speeds towards a fixed wall at 4(m)/(s) . An observer in the car hears both the source frequency as well as the frequency of sound reflected from the wall. If he hears 10 beats per second between the two sounds, the velocity of sound in air will be

A car emitting sound of frequency 500 Hz speeds towards a fixed wall at 4(m)/(s) . An observer in the car hears both the source frequency as well as the frequency of sound reflected from the wall. If he hears 10 beats per second between the two sounds, the velocity of sound in air will be

A car moves with a speed of 54 kmh^-1 towards a cliff. The horn of the car emits sound of frequency 400 Hz at a speed of 335 m s^-1 . (a) Find the wavelength of the sound emitted by the horn in front of the car. (b) Find the wavelength of the wave reflected from the cliff (c) What frequency does a person sitting in the car hear for the reflected sound wave ? (d) How many beats does he hear in 10 seconds between the sound coming directly from the horn and that coming after the reflection ?

A car moves with a speed of 54 kmh^-1 towards a cliff. The horn of the car emits sound of frequency 400 Hz at a speed of 335 m s^-1 . (a) Find the wavelength of the sound emitted by the horn in front of the car. (b) Find the wavelength of the wave reflected from the cliff (c) What frequency does a person sitting in the car hear for the reflected sound wave ? (d) How many beats does he hear in 10 seconds between the sound coming directly from the horn and that coming after the reflection ?