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Two stars P and Q are observed at night. Star P appears reddish white while star Q as white. From this, we conclude

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star P is farther away than star Q

temperature of Q is lower than that of P

star Q is at a distance as that of star P

temperature of Q is higher than that of P

answer is D.

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Detailed Solution

Farther stars move away from us faster and due to red shift the colour is red.

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