Question

convex lense: converging:: concave lense:_______
write correlation.

Answer 1

concave lens diverging ..... concave lens diverge the rays.... but concave mirror converges the rays....

Answer 2

$\huge{answer}$

$\purple{convex \: lense}$

A convex lens is a converging lens. When parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus. The distance between the principal focus and the centre of the lens is called the focal length.

$\purple{converging}$
Converging lenses can be used to focus parallel light to a single point. The point where the light converges is called the focal point or principal focus.
$\purple{concave}$
A concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. 
____________

$\huge{hope \: this \: helps}$