| 1 |
Which phenomenon of light proves that light waves are transverse in nature. |
- A. Refraction
- B. Reflection
- C. Diffraction
- D. Polarization
|
| 2 |
If 'N' is number of lines rule don the grating having length 'L' then grating element 'd' is given by. |
- A. N/L
- B. 2N/L
- C. L/N
- D. N/2L
|
| 3 |
In blue light is used as compare to red light then fringe spacing. |
- A. Increase
- B. Decreases
- C. Remain same
- D. Becomes zero
|
| 4 |
Hygen's principle is used for. |
- A. Explain polarization
- B. Locate the wave front
- C. Find the speed of light
- D. Find the index of refraction
|
| 5 |
Sound waves can not be |
- A. Reflected
- B. Refracted
- C. Polarized
- D. Diffracted
|
| 6 |
Angle between ray of light and wave front is |
- A. 0 <sup>o</sup>
- B. 60 <sup>o</sup>
- C. 90 <sup>o</sup>
- D. 120 <sup>o</sup>
|
| 7 |
Light waves emitted from a source spread in |
- A. Specific direction
- B. All direction
- C. Upward direction
- D. None of these
|
| 8 |
Which of the following is evidence of wave nature of light |
- A. Interference
- B. Diffraction
- C. Polarization
- D. All of these
|
| 9 |
According to Huygen's principle the points on primary wave front can be considered as |
- A. Secondary wavelets
- B. Ray of light
- C. Source of light
- D. None of these
|
| 10 |
Interplaner distance can be determined by |
- A. Newton's rings
- B. Bragg's law
- C. Diffraction pattern
- D. Interferometer
|