Huygens' wave theory allows us to know the:
1. | Wavelength of the wave. |
2. | Velocity of the wave. |
3. | Amplitude of the wave. |
4. | Propagation of wavefront. |
When the light diverges from a point source, the shape of the wavefront is:
1. Parabolic.
2. Plane.
3. Spherical.
4. Elliptical.
Huygen's principle for secondary wavelets may be used to:
1. | explain Snell's law. |
2. | find the velocity of light in vacuum. |
3. | find a new position of a wavefront. |
4. | both (1) & (3) are correct. |
By Huygen's wave theory of light, we cannot explain the phenomenon of:
1. | Interference |
2. | Diffraction |
3. | Photoelectric effect |
4. | Polarisation |
Which of the following is not true?
1. | The speed of light is dependent on the colour of the light. |
2. | The speed of violet light is less than the speed of the red light in glass. |
3. | The frequency of light never depends upon the property of the medium. |
4. | When the light diverges from a point source, the shape of the wavefront is plane. |
Light travels faster in the air than in glass. This is in accordance with:
1. | the wave theory of light. |
2. | the corpuscular theory of light. |
3. | neither (1) nor (2) |
4. | both (1) and (2) |
The plane wavefront is incident on a spherical mirror as shown. The reflected wavefront will be:
1. | 2. | ||
3. | 4. |