Question

The zone plate behaves like a
2 points
Concave Lens with multiple foci
O Convex Lens with multiple foci
O Convex Lens with single foci
O Concave Lens with single foci​

Answer 1

Explanation:

3....

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Answer 2

Answer:

the answer is : convex lens with multiple foci.

Explanation:

In a zone plate:

1. Image is formed which is much brighter and is obtained at the screen.

2. In a zone plate a converging action can be seen of the zone plate.

3. The equation of zone plate resembles the equation of the convex lens.

Hence, the zone plate acts as a convex lens with multiple foci.

We also note that a convex lens can behave as a converging lens.

It acts when: the rays that are parallel of light pass through a convex lens and the refracted ray thus produced gets converged at one point which is therefore called "principal focus", and the distance present between the principal focus and the focus of a convex length is called focal length.

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