Home
Class 12
PHYSICS
A star which is emitting radiation at a ...

A star which is emitting radiation at a wavelength of 5000A is approaching the earth with a velocity of `1.50 xx10^(6) m//s` The change in wavelegth of the radiation as received on the earth is

A

25A

B

100A

C

Zero

D

2.5A

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

star emitting light of wavelength 5896 Å is moving away from the earth with a speed of 3600 km / sec . The wavelength of light observed on earth will ( c= 3 xx 10 ^(8) m//sec is the speed of light)

Assuming photoemission to take place , the factor by which the maximum velocity of the emitted photoelectrons changes when the wavelength of the incident radiation is increased four times , is

A broadcasting station radiates at a frequency of 710 kHz. What is the wavelength ? Velocity of light =3 xx 10^8" m/s".

A rocket is going away from the earth at a speed of 10^(6) m/s. If the wavelength of the light wave emited by it be 5700 Å, what will be its Dopper,s shift

A star is moving away from the earth with a velocity of 100 km//s . If the velocity of light is 3 xx 10^(8) m//s then the shift of its spectral line of wavelength 5700 A due to Doppler effect is

A broadcasting station radiates at a frequency of 555 kHz. What is the wavelength ? Given velocity of wave is 3 xx 10^8 ms^(-1) .

An electron is moving vertically upwards in the uniform magnetic field of the earth. The velocity of the electron is 2.0 xx 10^(6) m/s and the horizontal component of the earth.s magnetic field is 0.32 xx 10^(-4)T. Obtain the magnitude and direction of the force on the electron.

Earth is moving towards a stationary star with a velocity 100 kms^(-1) . If the wavelength of light emitted by the star is 5000Å, then the apparent change in wavelength observed by the observer on earth will be

Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of photons emitted is 5.6 xx 10^(24). Calculate the power of this laser.

Radius of the earth is 6.40 xx 10^6 m. Find the diameter of the earth.