| 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 |
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
|
| 3 |
Light waves emitted from a source spread in |
- A. Specific direction
- B. All direction
- C. Upward direction
- D. None of these
|
| 4 |
Sound waves can not be |
- A. Reflected
- B. Refracted
- C. Polarized
- D. Diffracted
|
| 5 |
In red light is used as compare to blue light then fringe spacing. |
- A. Decreases
- B. Remain same
- C. Increases
- D. Becomes zero
|
| 6 |
When newton ring are seen through the transmitted light, then central spot is. |
- A. Dark
- B. Blue
- C. Bright
- D. Red
|
| 7 |
Bending of light around the edges of an obstacle is called. |
- A. Refraction
- B. Polarization
- C. Interference
- D. Diffraction
|
| 8 |
The phenomenon of polarization of light reveals that sun light is |
- A. Longitudinal waves
- B. Transverse wave
- C. Electromagnetic waves
- D. Monochromatic wave
|
| 9 |
In young's double slit experiment for the interference the central region will be |
- A. Dark
- B. Bright
- C. Coloured
- D. None of these
|
| 10 |
X-ray diffraction has been very useful in determining the structure of |
- A. Hemoglobin
- B. Stars
- C. Galaxies
- D. Stones
|