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 Top 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
127 votes
Answer Key / Explanation : (b) -
|
(b)
|
constant
number of blocked 
) on decreasing 
increases, hence intensity decreases127 votes
Answer Link
127