First slide

Radiation

Question

The surface temperature of the sun which has maximum energy emission at 500 nm is 6000 K. The temperature of a star which has maximum energy emission at 400 nm will be:

Easy

A

8500 K
B

4500 K
C

7500 K
D

6500 K

Solution

$λ_{m} T = b = constant 500 \times 6000 = 400 \times T_{2} T_{2} = 7500 K$

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