Question

A star is emitting yellow light. If it is accelerated
towards earth then to an observer on earth, it
will appear
(a) shinning yellow
(b) gradually changing to violet
(c) gradually changing to red
(d) unchanged

Answer 1

$\huge\star\underline\mathcal\purple{HELLO}$

A star is emitting yellow light. If it is accelerated

towards earth then to an observer on earth, it

will appear

(a) shinning yellow✔✔⚡

(b) gradually changing to violet

(c) gradually changing to red

(d) unchanged

Answer 2

Answer:

The exact answer is ,

as the star coming closer to earth , the frequency of light increases & the wavelength decreases due to doppler effect .

So the colour should gradually change to blue.