Select the correct alternative, The angle between the normal and refracted ray is called:
- AAngle of deviation
- BAngle of incidence
- CAngle of refraction
- DNone of these
Select the correct alternative, The angle between the normal and refracted ray is called:
Explanation:
The angle formed between the normal and refracted ray at the point of refraction is called angle of refraction.

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If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be
|
(a) 0.1 watt |
(b) 1 watt |
(c) 10 watt |
(d) 100 watt |
Magnetic field intensity at the centre of coil of 50 turns, radius 0.5 m and carrying a current of 2 A is
|
(a) 0.5 |
(b) 1.25 |
(c) 3 |
(d) 4 |
When cathode rays (tube voltage ~ 10 kV) collide with the anode of high atomic weight then we get
|
(a) Positive rays |
(b) X-rays |
(c) Gamma rays |
(d) Canal rays |
Fusion reaction is initiated with the help of
|
(a) Low temperature |
(b) High temperature |
(c) Neutrons |
(d) Any particle |