A convex lens has a divergent action and a concave lens has a convergent action.

Examine what happens to light rays as they go through (a) a convex lens and (b) a concave lens. You will learn which one has a divergent action and which one has a convergent action as a result.

A transparent material called a lens is bound by two refracting surfaces, at least one of which is spherical. Convex and concave lenses are the two basic categories of lenses. Concave and convex lenses are also referred to as divergent and convergent, respectively. The centre of a convex lens is thick, and the thickness gets thinner all the way to the end. The centre of a concave lens is where it is narrowest, and the thickness grows until the end.

These lenses bend light from an item as it travels through them, creating a picture of that thing.

This is given by the formula $\frac{1}{v}-\frac{1}{u}=\frac{1}{f}$, where u is the position of the object from the lens and v is the position of the image formed from the lens (according to sign convection) . f is the distance of the focus from the lens.

The value of f is assumed to be positive for convex lenses and negative for concave lenses.
Light travelling in parallel beams converges at the lens' focus when it passes through a convex lens. A convex lens is sometimes known as a converging lens as a result.

The identical parallel light beams diverge in all directions as they go through a concave lens, giving the impression that the focus of the lens is where they are originating from. Consequently, a diverging lens is another name for a concave lens.

A convex lens has a divergent action, according to the statement in the question, whereas a concave lens has a convergent action. What we have learned, however, completely refutes this assertion. As a result, the assertion is untrue.

Correct answer is B) False