Question

3. Star moving away from earth shows (A) Blue shift (B) Red shift (C) Doppler's shift (D) frequency shift​

Answer 1

Answer:

When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer. If an object moves closer, the light moves to the blue end of the spectrum, as its wavelengths get shorter.

Answer 2

Answer:

3) Star moving away from earth shows

The answer is a) Blue shift