| 1 |
Dark fringes are also called as |
- A. Minima
- B. Maxima
- C. Wave front
- D. Ray of light
|
| 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 |
The phenomenon of polarization of light reveals that sun light is |
- A. Longitudinal waves
- B. Transverse wave
- C. Electromagnetic waves
- D. Monochromatic wave
|
| 4 |
Sodium chloride in a flame gives |
- A. Green light
- B. White light
- C. Red light
- D. Yellow light
|
| 5 |
In case of point source the shape of wave front is. |
- A. Plane
- B. spherical
- C. Circular
- D. Eliptical
|
| 6 |
The centre of Newton's rings will be |
- A. Dark
- B. Bright
- C. Coloured
- D. Not visible
|
| 7 |
Soap film is sunlight appears coloured due to. |
- A. Dispersion of light
- B. Diffraction of light
- C. Scattering of light
- D. Interference fo light
|
| 8 |
Which of the following is evidence of wave nature of light |
- A. Interference
- B. Diffraction
- C. Polarization
- D. All of these
|
| 9 |
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
|
| 10 |
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>
|
