- 1(current)
Q. No.Two slits are made one millimetre apart and the screen is placed one meter away. What is the fringe separation when blue-green light of wavelength \(500\) nm is used?
1. \(0.5\) mm
2. \(0.3\) mm
3. \(0.05\) mm
4. \(0.03\) mm
Subtopic: Â Young's Double Slit Experiment |
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Level 1: 80%+
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Consider the following statements and then mark the incorrect statement/s.
| a. | The angular separation of the fringes increases if the screen is moved towards the plane of the slits. |
| b. | The angular separation of the fringes increases if the (monochromatic) source is replaced by another (monochromatic) source of a shorter wavelength. |
| c. | The angular separation of the fringes increases if the separation between the two slits is increased. |
| d. | The sharpness of the fringes increases when the source slit is moved closer to the double-slit plane. |
1. Only b and c
2. Only a
3. Only a, b and c
4. All of the above
Subtopic: Â Young's Double Slit Experiment |
 51%
Level 3: 35%-60%
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- 1(current)
Q. No.
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