Wave Nature of Light with Young’s Double-Slit Experiment
1. In which of the following is the interference due to the division of wavefront?
2. If a torch is used in place of monochromatic light in Young's experiment, what will happen?
3. The fringe width in YDSE is doubled if:
4. In Young's double slit experiment, the condition for the formation of a dark fringe is: path difference =
5. If the path difference between two coherent light waves is λ/2, what type of interference occurs?
6. In YDSE, the position of the n-th dark fringe on the screen is given by
7. Two coherent sources are 0.3 mm apart and 1 m away from the screen. The second dark fringe is at 0.3 cm from the centre. What is the distance of the 4th bright fringe from the centre?
8. In YDSE, what happens to the fringe width if the experiment is performed in water (refractive index μ > 1)?
9. In YDSE, if one slit is completely closed, what will be observed on the screen?
10. The central fringe in Young's double slit experiment is always