In Young’s double-slit experiment, an interference pattern is obtained on a screen by a light of wavelength , coming from the coherent sources and . At certain point on the screen third dark fringe is formed. Then the path difference in microns is |
|||||||
a) |
0.75 |
b) |
1.5 |
c) |
3.0 |
d) |
4.5 |
In Young’s double-slit experiment, an interference pattern is obtained on a screen by a light of wavelength , coming from the coherent sources and . At certain point on the screen third dark fringe is formed. Then the path difference in microns is |
|||||||
a) |
0.75 |
b) |
1.5 |
c) |
3.0 |
d) |
4.5 |