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Two starts P and Q have slightly differe...

Two starts `P` and `Q` have slightly different surface temperature `T_(P)` and `T_(Q)` respectively, with `T_(P)gtT_(Q)`. Both starts are receding from the earth with speeds `v_(P)` and `v_(Q)` relative to the earth. The wavelength of light at which they radiate the maximum energy is found to be the same for both.

A

`v_(P)gtv_(Q)`

B

`v_(P)ltv_(Q)`

C

`v_(P)=v_(Q)` and the size of `Qgt` the sizer of `P`

D

Nothing can be said regarding `v_(P)` and `v_(Q)` from the given data.

Text Solution

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The correct Answer is:
A
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