367965
Wavefront is the locus of all points, where the particles of the medium vibrate with the same
1 Amplitude
2 Frequency
3 Period
4 None of these
Explanation:
On the wavefront, all the points are in the same phase. So correct option is (4).
PHXII10:WAVE OPTICS
367966
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens’ principle leads us to conclude that as it travels, the light beam:
1 goes horizontally without any deflection
2 bends downwards
3 bends upwards
4 becomes narrower
Explanation:
As the refractive index increases the light ray bend towards the normal and moves upward.
NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXII10:WAVE OPTICS
367965
Wavefront is the locus of all points, where the particles of the medium vibrate with the same
1 Amplitude
2 Frequency
3 Period
4 None of these
Explanation:
On the wavefront, all the points are in the same phase. So correct option is (4).
PHXII10:WAVE OPTICS
367966
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens’ principle leads us to conclude that as it travels, the light beam:
1 goes horizontally without any deflection
2 bends downwards
3 bends upwards
4 becomes narrower
Explanation:
As the refractive index increases the light ray bend towards the normal and moves upward.