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 is maximum in the spectrum of Q. If Tp , TQ and TR are the respective absolute temperature of P, Q and R, then it can be concluded from the above observations that

Question

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 is maximum in the spectrum of Q. If Tp , TQ and TR are the respective absolute temperature of P, Q and R, then it can be concluded from the above observations that

Infinity Learn · Accepted Answer

From Wein's displacement law,    λm×T $$=$$ constant $$P-max$$. Intensity is at violet ⇒ λm is minimum ⇒ temperature $$maximumR-max$$. intensity is at given ⇒ λm is moderate ⇒ temperature $$moderateQ-max$$ intensity is at red ⇒ λm is maximum ⇒ temperture minimumi.e., Tp > TR > TQ

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