1. | \(2 \pi\) | 2. | \(3 \pi\) |
3. | \(4 \pi\) | 4. | \( \pi \lambda\) |
Statement I: | If screen is moved away from the plane of slits, angular separation of the fringes remains constant. |
Statement Ii: | If the monochromatic source is replaced by another monochromatic source of larger wavelength, the angular separation of fringes decreases. |
1. | Statement I is False but Statement II is True. |
2. | Both Statement I and Statement II are True. |
3. | Both Statement I and Statement II are False. |
4. | Statement I is True but Statement II is False. |
1. | is halved |
2. | become four times |
3. | remains unchanged |
4. | is doubled |
1. | \(135\) | 2. | \(180\) |
3. | \(320\) | 4. | \(428\) |
A monochromatic light of frequency \(500\) THz is incident on the slits of a Young's double slit experiment. If the distance between the slits is \(0.2\) mm and the screen is placed at a distance \(1\) m from the slits, the width of \(10\) fringes will be:
1. \(1.5\) mm
2. \(15\) mm
3. \(30\) mm
4. \(3\) mm