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Which property of sodium is being used i...

Which property of sodium is being used in street lights ?

A

It shows photoelectric effect.

B

It has low melting point.

C

Sodium atom emits photons in the yellow region of visible spectrum, due to electrically stimulated transitions.

D

Sodium vapour show golden colour.

Text Solution

Verified by Experts

The correct Answer is:
C
The property of sodium atom to emit photons in yellow region of visible spectrum, due to electrically stimulated electron transitions is used in street lights.
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