- AIncreasing the distance between the plates.
- BIncreasing the thickness of the plates.
- CDecreasing the thickness of the plates.
- DDecreasing the distance between the plates.
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Two charge + q and -q are situated at a certain distance. At the point exactly midway between them
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(a) Electric field and potential both are zero |
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(b) Electric field is zero but potential is not zero |
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(c) Electric field is not zero but potential is zero |
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(d) Neither electric field nor potential is zero |
mesons can be
|
(a) |
(b) |
(c) |
(d) |
A 3volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be
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(a) 1/3 A |
(b) 1 A |
(c) 1.5 A |
(d) 2 A |
In a Young's double slit experiment, the central point on the screen is
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(a) Bright |
(b) Dark |
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(c) First bright and then dark |
(d) First dark and then bright |
In the following circuit, bulb rated as 1.5 V, 0.45 W. If bulbs glows with full intensity then what will be the equivalent resistance between X and Y
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(a) 0.45 W |
(b) 1 W |
(c) 3 W |
(d) 5 W |
At the magnetic north pole of the earth, the value of horizontal component of earth's magnetic field and angle of dip are, respectively
| (a) Zero, maximum | (b) Maximum, minimum |
| (c) Maximum, maximum | (d) Minimum, minimum |
Maximum useable frequency (MUF) in F-region layer is x, when the critical frequency is 60 MHz and the angle of incidence is 70°. Then x is
|
(a) 150 MHz |
(b) 170 MHz |
(c) 175 MHz |
(d) 190 MHz |