In Fresnel diffraction, if the distance between the disc and the screen is decreased, the intensity of central bright spot will
a)
Increase
b)
Decrease
c)
Remain constant
d)
None of these
In Fresnel diffraction, if the distance between the disc and the screen is decreased, the intensity of central bright spot will
a)
Increase
b)
Decrease
c)
Remain constant
d)
None of these
Question ID - 150184 | SaraNextGen Answer
In Fresnel diffraction, if the distance between the disc and the screen is decreased, the intensity of central bright spot will
a)
Increase
b)
Decrease
c)
Remain constant
d)
None of these
|
In Fresnel diffraction, if the distance between the disc and the screen is decreased, the intensity of central bright spot will |
|||||||
|
a) |
Increase |
b) |
Decrease |
c) |
Remain constant |
d) |
None of these |
1 Answer - 5876 Votes
3537
Answer Key : (b) -
Answer Link|
(b)
|
constant
number of blocked 
) on decreasing 
increases, hence intensity decreases