Question

187. The time period of rotation of the sun is
25 days and its radius is 7 x 10m. The Doppler
shift for the light of wavelength 6000 Å emitted
from the surface of the sun will be​

Answer 1

Answer:

The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma,[18][19] heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light and infrared radiation. It is by far the most important source of energy for life on Earth. Its diameter is about 1.39 million kilometres (864,000 miles), or 109 times that of Earth. Its mass is about 330,000 times that of Earth, and accounts for about 99.86% of the total mass of the Solar System.[20] Roughly three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron.

Answer 2

Answer:

0.04Å

Explanation:

Δλ=λ

c

v

​

 and v=

T

2πr

​

v=

25×24×3600

2π×7×10

8

​

c=3×10

8

m/s

∴Δλ=0.04

A

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