on observing light form 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 `T_(p), T_(Q)` and `T_(R)` are the respective absolute temperatures of P, Q and R, then it can be concluded from the above observation that

Options

A. `T_(P)gtT_(Q)gtT_(R)`
B. `T_(P)gtT_(R)gtT_(Q)`
C. `T_(P)ltT_(R)ltT_(Q)`
D. `T_(P)ltT_(Q)ltT_(R)`

Answer

B

Explanation

b) We know from Wien's displacement law,
`lambda_(m)T`=constant
So, `Talpha1/(lambda_(m)`
As, `lambda_(r) gt lambda_(g) gt lambda_(v)`
So, `T_(r) lt T_(g) lt T_(v)`
Given, `Ptov_(max)`,`Qtor_(max)`,`Rtog_(max)`
Hence, `T_(Q) ltT_(R)ltT_(p)`
i.e, `T_(P)gtT_(R)gtT_(Q)`