Geometrical OpticsHard
Question
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 to head, he uses a plane mirror kept at a distance of 1 m from him.The minimum length of the plane mirror required is
Options
A.180 cm
B.90 cm
C.85 cm
D.170 cm
More Geometrical Optics Questions
The length of astronomical telescope is 15 cm and has magnifying power 4 for normal adjustment. Focal length of the lens...A plano-convex lens has focal f = 20 cm. If its plane surface is silvered, then the new focal length will be :-...A fish rising vertically up towards the surface of water with speed 3 ms-1 observes a bird diving vertically down toward...The Cauchy′s dispersion formula is...Velocity of light in glass, whose refractive index w.r.t. air is 1.5, is 2 × 108 m/Sec. In a certain liquid the vel...