Question

30. A black body at 1227ºC emits radiations with
maximum intensity at a wavelength of 5000 A. If the
> temperature of the body is increased by 1000°C, the
maximum intensity will be observed at:
-
(AIPMT (Prelims)-2006]
(1) 4000 A
(3) 6000 A
(2) 5000 A
(4) 3000 A​

Answer 1

Answer:

6000 Â

Explanation:

Using Wein's explanation

λ * T = b (where λ is wavelength, T is temperature and b is Wein's constant

5000 * 1227 = b -----1

λ *  1000 = b ----------2

equating 1 and 2

we get  

λ = $\frac{5000*1227}{1000}$

λ = 6135 Â ≈ 6000 Â

 

Answer 2

Answer:

3000 A

Explanation:

refer the attachment

hope this helps :)