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COLUMN A |
COLUMN B |
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| 1 |
Red color travels faster than violet color in glass |
A |
As wavelength increases due to Doppler's Effect the visible region shifts towards the infrared region. |
| 2 |
No interference pattern is detected when two coherent sources are infinitely close to one another |
B |
Each point of the wavefront is the source of secondary disturbance. |
| 3 |
From a point source the locus of points which have same amplitude and vibrate in same phase is sphere. |
C |
The fringe width is inversely proportional to the distance b/w the slits. |
| 4 |
Increase in wavelength of light due to Doppler's Effect is Red Shift. |
D |
Wavelength of red color is greater than that of violet color |
Answer & explanation
Correct answer: option 2
| 1 |
Red color travels faster than violet color in glass because wavelength of red color is greater than that of violet color |
Different wavelengths travel with different velocities. |
| 2 |
No interference pattern is detected when two coherent sources are infinitely close to one another because The fringe width is inversely proportional to the distance b/w the slits. |
There has to be finite seperation between the sources. |
| 3 |
From a point source the locus of points which have same amplitude and vibrate in same phase is sphere because Each point of the wavefront is the source of secondary disturbance. |
Huygen's Principle |
| 4 |
Increase in wavelength of light due to Doppler's Effect is Red Shift because As wavelength increases due to Doppler's Effect the visible region shifts towards the infrared region. |
Application of Doppler's Effect. |