JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

1 Medium

1 of 1

Application +4 | -1

Star A has radius r surface temperature T while Star B has radius 4r and surface temperature T/2. The ratio of the power of two starts

{P_A}:{P_B}

View answer and explanation

Correct option: C

1:1

Option C (

1:1

) is correct because the power of a star is proportional to

r^2T^4

, and when the radius of star B is 4 times that of star A and the temperature is half, the powers are equal.

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