The ratio of the intensity at the centre of a bright fringe to the intensity at a point one-quarter of the distance between two fringe from the centre is |
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a) |
2 |
b) |
1/2 |
c) |
4 |
d) |
16 |

The ratio of the intensity at the centre of a bright fringe to the intensity at a point one-quarter of the distance between two fringe from the centre is |
|||||||

a) |
2 |
b) |
1/2 |
c) |
4 |
d) |
16 |

1 Answer

127 votes

At central position …(i) Since the phase difference between two successive fringes is , the phase difference between two points separated by a distance equal to one quarter of the distance between the two, successive fringes is equal to radian …(ii) Using (i) and (ii), |

127 votes

127