In Young’s double slit experiment, the separation between the slit is haled and the distance between the slits and screen is doubled. The fringe-width will |
|||

a) |
Be halved |
b) |
Be doubled |

c) |
Be quadrupled |
d) |
Remain unchanged |

In Young’s double slit experiment, the separation between the slit is haled and the distance between the slits and screen is doubled. The fringe-width will |
|||

a) |
Be halved |
b) |
Be doubled |

c) |
Be quadrupled |
d) |
Remain unchanged |

1 Answer

127 votes

**(c)**

Let S be a slit illuminated by monochromatic light of wavelength , let be coherent sources and distance between them be d and distance between source and screen is D. then, fringe width (W) is given by

When,

The fringe width is quadrupled.

127 votes

127