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.
(a) FALSE
a concave lens forms smaller and erect image always.
(b) FALSE
A convex lens forms virtual image when object is very close to lens otherwise it forms Real image.
(c) TRUE
In the image formed by concave mirror left side seems to be right side and right side looks like left side of object.
(d) FALSE
An object can be seen if it emits light but it can also be seen when it reflects the light falling on it.