1. | there will be a central dark fringe surrounded by a few coloured fringes. |
2. | there will be a central bright white fringe surrounded by a few coloured fringes. |
3. | all bright fringes will be of equal width. |
4. | interference pattern will disappear. |
1. | the refracted light will be completely polarised. |
2. | both the reflected and refracted light will be completely polarised. |
3. | the reflected light will be completely polarised but the refracted light will be partially polarised. |
4. | the reflected light will be partially polarised. |
1. | fringe width decreases. |
2. | fringe width increases. |
3. | central bright fringe becomes dark. |
4. | fringe width remains unaltered. |
1. | B and C | 2. | B and D |
3. | A and C | 4. | A and B |
1. | \(\dfrac{{I}_0}{16}\) | 2. | \(\dfrac{{I}_0}4\) |
3. | \(\dfrac{{I}_0}2\) | 4. | \(\dfrac{{I}_0}{32}\) |
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. |