WorksheetsFresnel
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
Every point on the wavefront sends out _____________
a)
Wavefront
b)
Wave
c)
Secondary wavelets
d)
None
2.
Path difference of the zone plate is
a)
λ/3
b)
λ/2
c)
π/2
d)
π/3
3.
Area of 2nd half period zone will be ___
a)
πdλ
b)
2πdλ
c)
3πdλ
d)
λπ2d
4.
Resultant amplitude of R1 is _____ than R2
a)
Less
b)
Very less
c)
Greater
d)
Equal
5.
In +ve zone plate even zones are _______
a)
Opaque
b)
Transparent
c)
Both
d)
None
6.
Zone plate is formed by ____
a)
Interference
b)
Refraction
c)
Reflection
d)
Diffraction
7.
Intensity of image formed in convex lens is ______
a)
Less
b)
Very less
c)
More
d)
Can't say
8.
Zone plate can be used over _____
a)
Visible region
b)
Invisible
c)
Microwave
d)
Ultraviolet
100 %
