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(b) concave lens
(d) 180 - 2θ
(d) 180 – 2θ
(d) both (b) and (c)
(a) o°
(c) dioptre
(b) focus
(a) 1
(b) critical angle
(d) diminished and virtual
The nature of image seen is not altered with position in a
(b) concave lens
(b) concave lens
See lessThe angle of deviation ϕ of a reflected light from the incident light (θ) is
(d) 180 - 2θ
(d) 180 – 2θ
See lessAs light travels from a rarer to a denser medium it will have
(d) both (b) and (c)
(d) both (b) and (c)
See lessThe angle of incidence for a ray of light having zero reflection angle is
(a) o°
(a) o°
See lessThe SI unit of converging ability of a lens is
(c) dioptre
(c) dioptre
See lessLight from the SUN falling on a convex lens will converge at a point called
(b) focus
(b) focus
See lessThe value of ₂n¹ x ₁n² is
(a) 1
(a) 1
See lessThe angle of incidence i and refraction r are equal in a transparent slab when the value of i is
(a) o°
(a) o°
See lessA student lying on the floor near a swimming pool wants to see an object at its bottom surface. The angle of incidence of light from the object on the surface of water is called
(b) critical angle
(b) critical angle
See lessAn object at a distance of + 15 cm is slowly moved towards the pole of a convex mirror. The image will get
(d) diminished and virtual
(d) diminished and virtual
See less