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.
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.
