| 1 |
The blue colour of sky is due to |
- A. diffraction
- B. Reflection
- C. Polarization
- D. Scattering
|
| 2 |
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
|
| 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 |
Which of the following is evidence of wave nature of light |
- A. Interference
- B. Diffraction
- C. Polarization
- D. All of these
|
| 5 |
The centre of Newton's rings will be |
- A. Dark
- B. Bright
- C. Coloured
- D. Not visible
|
| 6 |
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
|
| 7 |
Which one of the following can not be polarized. |
- A. Ultra violet rays
- B. Radio waves
- C. T.V. Waves
- D. Sound waves
|
| 8 |
Michelson's interferometer can be used ot find the |
- A. Velocity of light
- B. Wavelength of light
- C. Velocity of sound
- D. Wavelength of sound
|
| 9 |
Bright fringes are also called as |
- A. Minima
- B. Maxima
- C. Wave front
- D. Ray of light
|
| 10 |
Sound waves can not be |
- A. Reflected
- B. Refracted
- C. Polarized
- D. Diffracted
|