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 `T_(P)`, `T_(Q)` and `T_(R)` are respective absolute temperature of `P`, `Q` and `R`. then it can be concluded from the above observation that

Options

A. `T_(P) lt T_(R) lt T_(Q)`
B. `T_(P) lt T_(Q) lt T_(R )`
C. `T_(P)gt T_(Q) gt T_(R )`
D. `T_(P) gt T_(R ) gt T_(Q)`

Answer

D

Explanation

According to Wien.s displacemetn law `lamda_(m) T`= constant …(i)
For star P, intensity of violet colour is maximum
For star Q, intensity of red colour is maximum.
For star R, intensity of green colour is maximum.
Also, `lamda_(r) gt lamda_(g) gt lamda_(v)`
Using equation(i), `T_(r) lt T_(g) lt T_(v)`
`T_(Q) lt T_(R ) lt T_(P)`