A zone plate behaves like as :
(a) Concave lens
(b) Convex lens
(c) Glass plate
(d) Plane mirror
Answers
Answered by
2
Answer:
b. convex lens is the correct option
Answered by
1
Answer:
A zone plate behaves like as a convex lens.
Therefore, the option (b) is correct.
Explanation:
In a zone plate, a much brighter image is obtained at the screen which shows the converging action of the zone plate. Its equation matches that of the lens. Therefore, the zone plate acts such as a convex lens with multiple foci.
- A zone plate is an optical device which can be used to focus light. In contrast to a lens, zone plate is use on diffraction rather than reflection or refraction.
- Zone plate is usually flat so it can be considered as an example for flat optics. Zone plate shows transmissivity which is radially varying.
- Zone plate behaves like a simultaneously both converging and diverging lens.
- If the zone plate is constructed in such way that its opacity varies in a gentle, sinusoidal manner. Then a single point can be formed from the diffraction.
- This type of zone plate pattern behave as converging lens's transmission hologram.
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