| 1 |
The phenomenon of polarization of light reveals that sun light is |
- A. Longitudinal waves
- B. Transverse wave
- C. Electromagnetic waves
- D. Monochromatic wave
|
| 2 |
The light energy travels in space as waves was firstly proposed by |
- A. Maxwell
- B. Young
- C. Einsten
- D. Hydrogen
|
| 3 |
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
|
| 4 |
A ray of light is a line |
- A. Parallel to wave front
- B. Normal to wave front
- C. Anti-parallel to wave
- D. Any one of these
|
| 5 |
A ray of light shows the direction of propagation of light It is line which is. |
- A. Normal to the wave front
- B. Parallax to the wave front
- C. Opposite to the wave front
- D. Equal to the wave front
|
| 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 |
The wavelength of X-rays is of the order of. |
- A. 10<sup>-8</sup> m
- B. 10<sup>-10</sup>m
- C. 10<sup>-5</sup>m
- D. 10<sup>-4</sup>m
|
| 8 |
The centre of Newton's rings will be |
- A. Dark
- B. Bright
- C. Coloured
- D. Not visible
|
| 9 |
When newton ring are seen through the transmitted light, then central spot is. |
- A. Dark
- B. Blue
- C. Bright
- D. Red
|
| 10 |
In case of point source the shape of wave front is |
- A. Circular
- B. Spherical
- C. Elliptical
- D. Square
|
