Transmission Of Heat Question 154

Question: The cause of Fraunhoffer lines is

[RPMT 1996; EAMCET 2001]

Options:

A) Reflection of radiations by chromosphere

B) Absorption of radiations by chromosphere

C) Emission of radiations by chromosphere

D) Transmission of radiations by chromosphere

Show Answer

Answer:

Correct Answer: B

Solution:

When the light emitted from the sun’s photosphere passes through it’s outer part Chromosphere, certain wave lengths are absorbed. In the spectrum of sunlight, a large number of dark lines are seen called Fraunhoffer lines.