| 1 |
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
|
| 2 |
The blue colour of sky is due to |
- A. diffraction
- B. Reflection
- C. Polarization
- D. Scattering
|
| 3 |
Light entering rom air glass does not change in its. |
- A. Frequency
- B. Wavelength
- C. Velocity
- D. Direction
|
| 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 |
Which of the following is evidence of wave nature of light |
- A. Interference
- B. Diffraction
- C. Polarization
- D. All of these
|
| 6 |
Newton's rings are formed due to phenomenon of. |
- A. Interference
- B. Dispersion
- C. Diffraction
- D. Polarization
|
| 7 |
In red light is used as compare to blue light then fringe spacing. |
- A. Decreases
- B. Remain same
- C. Increases
- D. Becomes zero
|
| 8 |
Intensity of light depend on |
- A. Wave length
- B. Amplitude
- C. Velocity
- D. Frequency
|
| 9 |
The fringe spacing in a double slit experiment can be increased by decreasing. |
- A. Wavelength of light
- B. Width of slits
- C. Slit separation
- D. Distance between the slits and the screen
|
| 10 |
The phenomenon of polarization of light reveals that sun light is |
- A. Longitudinal waves
- B. Transverse wave
- C. Electromagnetic waves
- D. Monochromatic wave
|
