wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The graph shown in the adjacent diagram represents the variation of temperature (T) of two bodies, x and y having same surface area, with time (t) due to the emission of radiation. Find the correct relation between the emissivity (e) and absorptivity (a) of the two bodies.

A
ex>ey and ax<ay
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
ex<ey and ax>ay
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
ex>ey and ax>ay
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
ex<ey and ax<ay
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C ex>ey and ax>ay
Rate of cooling (dTdt)emissivity (e)
From graph, (dTdt)x>(dTdt)yex>ey
Further emissivity (e) Absorptive power (a)ax>ay
( good absorbers are good emitters)

flag
Suggest Corrections
thumbs-up
6
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon