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An atom emits energy equal to 4 xx 10^(-...

An atom emits energy equal to `4 xx 10^(-12)` erg. In which part of the electromagnetic spectrum does the corresponding line lie?

A

UV region

B

Infrared region

C

Visible region

D

Microwave region.

Text Solution

Verified by Experts

The correct Answer is:
C
The wavelength corresponding to energy `4xx10^(-12)` ergs is
`lambda=(hC)/(DeltaE)=(6.62xx10^(-34)xx3xx10^8)/(4xx10^(-12)xx10^(-7))`
`=4.965xx10^(-7)`m=4965 Ã…
Visible region extends from 3800 Ã…-7600 Ã…
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DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Brain Teaser-2
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