The dark lines in the solar spectrum are due to
A. Absorption of corresponding wavelengths by the outer layers of the sun.
B. Destructive interference between waves of certain definite wavelengths.
C. Absorption of corresponding wavelengths by the prism used in the photograph.
D. Absence of corresponding wavelengths from the light emitted by the core of the sun.
Answer: Option A
Solution(By Examveda Team)
Absorption of corresponding wavelengths by the outer layers of the sun.
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The tree which sends down roots from its branches to the soil is known as:
A. Oak
B. Pine
C. Banyan
D. Palm
Brass gets discoloured in air because of the presence of which of the following gases in air?
A. Oxygen
B. Hydrogen Sulphide
C. Carbon dioxide
D. Nitrogen
Which of the following is a non metal that remains liquid at room temperature?
A. Phosphorous
B. Bromine
C. Chlorine
D. Helium
Please explain this answer