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
A .point source S is placed at the bottom of different layers as shown in the figure. The refractive index of bottommost...y = sin πx ; cos π x π ⇒ = ± 1an 45o = 1 = 2 cosπxcos πx = ⇒ π x = ∴...A square of side 3 cm is placed at a distance of 25 cm from a concave mirror of focal length 10 cm. The centre of the sq...An equiconvex lens is forming an image on a screen of an object placed on principle axis of the lens. If half the portio...When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheetof glass. This...