MCQ
When a positive charge is brought to higher potential from lower potential, then potential energy __________ .
- Adecreases
- ✓increases
- Cremains constant
- Dincreases or decreases
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If scattering particles are 56 for 90° angle then this will be at 60° angle
|
(a) 224 |
(b) 256 |
(c) 98 |
(d) 108 |
The maximum focal length of the eye-lens of a person is greater than its distance from the retina. The eye is:
For a transistor, in a common emitter arrangement, the alternating current gain b is given by
|
(a) β = |
(b) β = |
(c) β = |
(d) β = |
An electric bulb is rated 220 volt and 100 watt. Power consumed by it when operated on 110 volt is
|
(a) 50 watt |
(b) 75 watt |
(c) 90 watt |
(d) 25 watt |