lenses

the transparent medium that refracts the light and it is limited with two spherical surfaces is .....................

• plane mirror

• spherical mirror

• lens

convex lens ..................the light ray

• converge

• diverge

• not affects

the lens has ............. center/s of curvature.

• 1

• 2

• 3

the point inside the lens that lies on the principle axis in the mid distance between its two faces is ..............

• the center of curvature

• pole

• optical center

the focus of concave lens is ..............

• real

• virtual

• not existed

the thin lens has focal length ....................... that of thick lens

• smaller than

• larger than

• equal to

when the light ray passes through the optical center of the lens, it ...........................

• refracts passing through the focus

• refracts parallel to the principle axis

• passes without refraction

if the object is at distance greater than double the focal length, the image will appear at........................

• the focus

• distance between F and C

• the center of curvature

if the object is put at distance greater than the focal length but less than double the focal length, the image properties will be.................

• real, inverted and magnified

• real, inverted and diminished

• virtual, erect and magnified

no image formed in case the object is present at......................

• very far distance

• center of curvature

• the focus