NEET | 2017Geometrical OpticsHard
Question
A thin prism having refracting angle 10o is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be :-
Options
A.
6o
B.
8o
C.
10o
D.
4o
Solution
For dispersion without deviation
A1( - 1) = A2 ()
10(1.42 - 1) = A2 (1.7 - 1)
A2 = 6o
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A long sighted person has a minimum distance of distinct vision of 50 cm. He wants to reduce it to 25 cm. He should use ...When an unpolarized light falls at a particular angle on a glass plate (placed in air), it is observed that the reflecte...A person wears glasses of power - 2.0D. The defect of the eye and the far point of the person without the glasses will b...A point source of light is placed on the principle axis between F and 2F of a concave lens. On the other side very far, ...A Person wears glasses of power - 2.0 D. The defect of the eye and the far point of the person without the glasses will ...