Geometrical OpticsHard
Question
Focal length of convex lens is f. If this lens is cut along parallel to its length in two equal parts then focal length of its half part will be :
Options
A.f / 2
B.f
C.
D.2f
More Geometrical Optics Questions
An object of height 1.5 cm is situated at a distance of 15 cm from a concave mirror. The concave mirror forms its real i...A plane convex lens of refractive index 1.5 and radius of curvature 30 cm is silvered at the curved surface. Now this le...Two point white dots are 1 mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm. Approximately, what...A converging beam of rays is incident on a diverging lens. Having passed through the lens the ray intersect at a point 1...A ray of light from a denser medium strikes a rarer medium at an angle of incidence i (see figure). The reflected and re...