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6. When white light is passed through dilute solutions of blood, it produces

A. band spectrum

B. line spectrum

C. band absorption spectrum

D. line absorption spectrum

Explanation:

7. The temperature of chromospheres is

A. 14000°C

B. 14 million °C

C. 1200°C

D. 6000°C

Explanation:

8. A continuous spectrum interrupted by dark lines or bands in the characteristic regions of the relatively colders substance through which light from the incandescent source has passed is

A. pure spectrum

B. impure spectrum

C. absorption spectrum

D. band spectrum

Explanation:

9. The central part of the Sun is called

A. chromospheres

B. stratosphere

C. photosphere

D. troposphere

Explanation:

10. The temperature of photosphere is

A. 10 million °C

B. 1 million °C

C. 12000°C

D. 14 million °C

Explanation:

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