WBJEE question paper

W.B Joint Entrance 2010 Physics and Chemistry Paper(English Version)

Submitted by wbjee.manager on Sun, 03/27/2011 - 00:52

 

1. Experimental investigations show that the intensity of solar radiation is maximum for a wavelength 480 nm in the visible region. Estimate the surface temperature of sun. Given Wein’s constant b = 2.88 × 10–3 mK.

(A) 4000 K   (B) 6000 K    (C) 8000 K    (D) 106 K