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Variation of radiant energy emitted by s...

Variation of radiant energy emitted by sun, filament of tungsten lamp and welding arc as a function of its wavelength is shown in fig :

A

Sun- `T_(1)`, tungsten filament `T_(2)`, welding arc- `T_(3)`

B

Sun- `T_(2)`, tungsten filament - `T_(1)`, welding arc - `T_(3)`

C

Sun- `T_(3)`, tungsten filament- `T_(1)`, welding arc- `T_(2)`

D

Sun- `T_(1)`, tungsten filament - `T_(3)` welding arc- `T_(2)`.

Text Solution

Verified by Experts

The correct Answer is:
C
Here `lamda_(m_(3))ltlamda_(m_(2))ltlamda_(m_(1))`
`:.T_(m_(3))gtT_(2)gtT_(1)" As "lamda_(m).T=` constant.
Correct choice is (c ).
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