Q.

What is the approximate surface temperature of a Yellow star? Wiens's constant = 0.288 cmK

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a

3942oC

b

2984oC

c

4963oC

d

5814oC

answer is C.

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Detailed Solution

Wavelength of yellow light is 5500 Ao. By Wien's displacement lawλT=b⇒T=bλ=0.288×1085500Ao=5236oK=49630C
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