Geometrical OpticsMedium
Question
Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the position of minimum deviation, the angle of refraction will be
Options
A.30o for both the colours
B.greater for the violet colour
C.greater for the red colour
D.equal but not 30o for both the colours
Solution
At minimum deviation for any wavelength
r1 = r2 = A/2, Because r1 + r2 = A
r1 = r2 = A/2, Because r1 + r2 = A
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
The figure shows initial positions of a source of light S and a light detector D. Both S & D move with velocity 10 cm/s,...A man is 180 cm tall and his eyes are 10 cm below the top of his head. In order to see his entire height right from toe ...wo plane mirror A and B are aligned paralle to each other, as shown in the figure. A light ray is incident an angle 30o ...A reflected successively from from two plane mirrors inclined at at certain angle (< 90o) under goes a devotion of 30...A rectangular glass slab ABCD of refractive index is immersed in water of refractive index n2 (n1 > n2). A ray of light ...