On investigation of light from 3 different stars A, B and C it was found that in the spectrum A the intensity of the red colour is maximum and in B the intensity of the blue colour is maximum and in c the intensity of the yellow colour is maximum. From this observation it can be concluded that

The temperature of A is maximum, B is minimum and C is intermediate .

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The temperature of A is maximum, C is minimum and B is intermediate .

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The temperature of B is maximum, B is minimum and C is intermediate .

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The temperature of C is maximum, B is minimum and A is intermediate .

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Solution

The correct option is C The temperature of B is maximum, B is minimum and C is intermediate .
According to Wein’s law, $λ_{m} T = c o n s t a n t$
$λ_{r} > λ_{y} > λ_{b} \Rightarrow T_{r} < T_{y} < T_{c}$ or $T_{A} < T_{B} < T_{C}$

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Q. On investigation of light coming from three different stars

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