Question

A small bulb is placed at the principal focusof a convex lens. When the bulb is switched on, the lens will produce

a) a divergent beam of light
b) a coloured beam of light
c) a parallel beam of light
d) a convergent beam of light​

Answer 1

Answer:

d) a convergent beam of light

Explanation:

A convex lens is Convergent lens.

A concave lens is a Divergent lens.

Thus , d is the correct answer.

Hope it's help you.

Answer 2

A concave lease is a divergent lens and the convex-lens is convergent lens so answer is (d)