| 1 |
Which one of the following can not be polarized. |
- A. Ultra violet rays
- B. Radio waves
- C. T.V. Waves
- D. Sound waves
|
| 2 |
Light entering rom air glass does not change in its. |
- A. Frequency
- B. Wavelength
- C. Velocity
- D. Direction
|
| 3 |
When newton ring are seen through the transmitted light, then central spot is. |
- A. Dark
- B. Blue
- C. Bright
- D. Red
|
| 4 |
Which is nooptically active |
- A. Sugar
- B. Tartaric acid
- C. Water
- D. Sodium chloride
|
| 5 |
Standard metal according to Michelson's interferometer is equivalent to |
- A. 1553163.5 wave meter
- B. 3 x 108meter
- C. 15503000 meter
- D. None of these
|
| 6 |
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
|
| 7 |
In blue light is used as compare to red light then fringe spacing. |
- A. Increase
- B. Decreases
- C. Remain same
- D. Becomes zero
|
| 8 |
Interplaner distance can be determined by |
- A. Newton's rings
- B. Bragg's law
- C. Diffraction pattern
- D. Interferometer
|
| 9 |
Bending of light around the edges of an obstacle is called. |
- A. Refraction
- B. Polarization
- C. Interference
- D. Diffraction
|
| 10 |
According to Hygen's principle, each point on a wave front acts as a source of. |
- A. Secondary wavelet
- B. New wave front
- C. Sound
- D. Primary wavelet
|