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On observing light from three different ...

On observing light from three different stars P, Q and R, it was found that intensity of violet colour is maximum in the spectrum of P, the intensity of green colour is maximum in the spectrum of R and the intensity of red colour in maximum in the spectrum of Q. If `T_(p) , T_(Q) and T_(R)` are the respective absolute temperature of P, Q and R, then it can be concluded from the above observations that

A

`T_(P) gt T_(Q) gt T_(R)`

B

`T_(P) gt T_(R) gt T_(Q)`

C

`T_(P) lt T_(R) lt T_(Q)`

D

`T_(P) lt T_(Q) lt T_(R)`

Text Solution

Verified by Experts

The correct Answer is:
B
Light of violet colour has the shortest wavelength, consequently it has the highest frequency.
So the temperature of star P will be maximum.
Similarly, the light of red colour has the longest wave length and hence star Q has the minimum temperature.
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