Question
Question: If the wavelengths of maximum intensity of radiation emitted by sun and moon are 0.5 × 10<sup>–6</su...
If the wavelengths of maximum intensity of radiation emitted by sun and moon are 0.5 × 10–6metre and 10–4metre respectively, the ratio of their temperature is –
A
1001
B
2001
C
100
D
200
Answer
200
Explanation
Solution
ls = 0.5 × 10–6, lm = 10–4
\ TmTs=λsλm=0.510−4×106=0.5100×10= 200