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Two spheres A and B having radii 3 cm an...

Two spheres A and B having radii 3 cm and 5 cm respectively are coated with carbon black on their outer surfaces. The wavelengths of maximum intensity of emitted radiation are 300 nm and 500 nm respectively. If the powers radiated are `Q_A` and `Q_B` respectively, then `(Q_A)/(Q_B)` is

A

`sqrt(5/3)`

B

`5/3`

C

`(5/3)^2`

D

`(5/3)^4`

Text Solution

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The correct Answer is:
C
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