If a star emitting yellow light is accelerate | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to the Doppler effect for light,when a source of light moves towards an observer,the observed frequency $f'$ increases compared to the s

Vedclass · Accepted Answer

gradually changing to blue

Vedclass · Answer

(C) According to the Doppler effect for light,when a source of light moves towards an observer,the observed frequency $f'$ increases compared to the source frequency $f$.This is given by the formula $f' = f \sqrt{\frac{c+v}{c-v}}$,where $v$ is the velocity of the source towards the observer and $c$ is the speed of light.Since the frequency increases,the wavelength $\lambda$ decreases $(\lambda = c/f)$.$A$ decrease in wavelength corresponds to a shift towards the blue end of the visible spectrum,which is known as a 'blue shift'.Therefore,the yellow light will appear to shift towards the blue color.

If a star emitting yellow light is accelerated towards the Earth,then to an observer on Earth,it will appear:

Similar Questions

Assuming that the universe is expanding,if the spectrum of light coming from a star which is moving away from the Earth is tested,then in the wavelength of light:

Write the formula for the Doppler shift for light.

The Doppler effect is applicable for

Due to the Doppler effect, the shift in wavelength observed is $0.1 \text{ Å}$ for a star producing a wavelength of $6000 \text{ Å}$. The velocity of recession of the star will be: (in $\text{ km/s}$)

$A$ star producing light of wavelength $6000 \ \mathring{A}$ moves away from the Earth with a speed of $5 \ km/s$. Due to the Doppler effect, the shift in wavelength will be $...... \ \mathring{A}$ $(c = 3 \times 10^8 \ m/s)$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module