Question

Difference between zonal plate and converging

Answer 1

Answer:

zonal plate:

1. A zone plate is a device used to focus light or other things exhibiting wave character.

2.  If the radius of the first half-period zone is 0.316mm & the wavelength λ = 5*10-5.

2. Then the zone plate will behave like a lens of focal length 20 cm. 2/n λ

Converging:

1. To tend to meet in a point or line; incline toward each other, as lines that are not parallel. to tend to a common result, conclusion, etc.

2. Thus unlike a converging lens, which has only one focus.

3. Converging has no multiple foci.

Answer 2

Zonal Plate:

1. As we all know that the zone plate could be a device wont to focus lightweight or alternative things exhibiting wave character.

2. If the radius of the primary half-period zone is zero.316mm & the wavelength  λ

3. Then the zone plate can behave sort of a lens of distance twenty cm.

  λ

Converging:

1. As we all know that to tend to satisfy in an exceedingly purpose or line; incline toward one another, as lines that don't seem to be parallel. So, tend to a typical result, conclusion, etc.

2. therefore in contrast to a lense, that has just one focus.

3. So, A lens system has just one focus whereas a zone plate contains a range of foci.