| 1 |
The light energy travels in space as waves was firstly proposed by |
- A. Maxwell
- B. Young
- C. Einsten
- D. Hydrogen
|
| 2 |
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
|
| 3 |
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
|
| 4 |
Standard metal according to Michelson's interferometer is equivalent to |
- A. 1553163.5 wave meter
- B. 3 x 108meter
- C. 15503000 meter
- D. None of these
|
| 5 |
When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes and observed, The wavelength of light used is. |
- A. 5000 m
- B. 50000 A<sup>o</sup>
- C. 500 cm
- D. 2000 A<sup>o</sup>
|
| 6 |
Light entering rom air glass does not change in its. |
- A. Frequency
- B. Wavelength
- C. Velocity
- D. Direction
|
| 7 |
Newton's rings are formed due to phenomenon of. |
- A. Interference
- B. Dispersion
- C. Diffraction
- D. Polarization
|
| 8 |
the locus of all pint in the same wave of vibration is called. |
- A. Wave front
- B. Diffraction
- C. Interference
- D. Polarization
|
| 9 |
The Bragg's equation is given by |
|
| 10 |
The centre of Newton's fringe is dark due to. |
- A. Destructive interference
- B. Diffraction
- C. Constructive interference
- D. Polarization
|
