State whether true or false:
State whether the following statements are 'true' or 'false' by writing T/F against them.
(a) A convex lens has a divergent action and a concave lens has a convergent action.
(b) A concave lens, if kept at a proper distance from an object, can form its real image.
(c) A ray of light incident parallel to the principal axis of a lens, passes undeviated after refraction.
(d) A ray of light incident at the optical centre of lens, passes undeviated after refraction.
(e) A concave lens forms a magnified or diminished image depending on the distance of object from it.
Question 11
State whether the following statements are True or False. (a) A concave lens can be used to produce an enlarged and erect image. (b) A convex lens always produces a real image. (c) The sides of an object and its image formed by a concave mirror are always interchanged. (d) An object can be seen only if it emits light.