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he maximum wavelength of radiation emitt...

he maximum wavelength of radiation emitted at 2000 K is 4 um. The maximum wavelength of radiation emitted at 2400 K is

A

3.33`mu` m

B

`2.22 mu ` m

C

`1.11 mu` m

D

`0.11 mu` m

Text Solution

Verified by Experts

The correct Answer is:
A
According to Wien.s displacement law
`lambda_(m_(1)) T_(1) = lambda_(m_(2)) T_(2) implies lambda_(m_(2)) = (lambda_(m_(1)) T_(1))/(T_(2))`
`= (2000 xx 4)/(2400) = 3.33 mu m`
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