Star A has its maximum emission at

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

450\,\text{nm}

, while Star B peaks at

600\,\text{nm}

. What is the approximate ratio

T_{\!A}/T_{\!B}

of their surface temperatures? (a)

1.07

(b)

0.75

(c)

1.33

(d)

1.50