Question

Fraunhoffer lines in the Sun's spectrum are present because

• A. Vapours of certain elements present in the atmosphere absorb certain colours
• B. The temperature of the Sun is very high
• C. The Sun does emit certain light
• D. Certain elements present in the Sun interfere

Answer 1

The correct option is D Certain elements present in the Sun interfere

Hydrogen is the main element of the Sun. Other elements such as calcium. sodium, magnesium, iron present in minute quantities are considered as impurities because they absorb the light emitting from the core at the specific wavelength and results in dark features.