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 the respective absolute temperature of P, Q and R, then it can be concluded from the above observations that

T_{P} < T_{R} < T_{Q}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

T_{P} < T_{Q} < T_{R}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

T_{P} > T_{Q} > T_{R}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

T_{P} > T_{R} > T_{Q}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B $T_{P} > T_{R} > T_{Q}$
from wein displacement law
$λ_{m} T = b$
$λ_{m} α \frac{1}{T}$
The wavelength of red is maximum hence, temperature of Q $T_{Q}$ will be least , and wavelength of violet is minimum and the temperature of P $T_{P}$ will be highest, and temperature of green $T_{R}$ light will lie between P and Q
$T_{P} > T_{R} > T_{Q}$

Suggest Corrections

Similar questions

On observing light from three different stars P, Q and R, it was found that intensity ofviolet colour is maximum in the spectrum of P, the intensity of green colour is maximumin the spectrum of R and the intensity of red colour is maximum in the spectrum of Q. If $T_{P}, T_{Q} a n d T_{R}$ are the respective absolute temperatures of P, Q and R, then it can be concluded from the above observations that :

Q. Assertion :There exists no A.P. whose three terms are

\sqrt{3}, \sqrt{5}

and

\sqrt{7}

. Reason: If

t_{p}, t_{q}

and

t_{r}

are three distinct terms of an A.P., then

\frac{t_{r} - t_{p}}{t_{q} - t_{p}}

is a rational number.

Q. TP and TQ are any two tangents to a parabola and the tangent at a third point R cuts them in P' and Q'; prove that :

\frac{T P^{'}}{T P} + \frac{T Q^{'}}{T Q} = 1

In the given figure, there are two circles with the centres O and O' touching each other internally at P. Tangents TQ and TP are drawn to the larger circle and tangents TP and TR are drawn to the smaller circle . Find TQ : TR

Q. For an A.P.,

T_{p} = q

and

T_{q} = p

, then

T_{p + q} =

..........

Join BYJU'S Learning Program

The correct option is B TP>TR>TQfrom wein displacement law λmT=bλmα1TThe wavelength of red is maximum hence, temperature of Q TQ will be least , and wavelength of violet is minimum and the temperature of P TP will be highest, and temperature of green TR light will lie between P and QTP>TR>TQ