MCQ
For a single charge the field lines start or ends at:
- APositive charge.
- BNegative charge.
- CInfinity.
- DNone.
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Time period for a magnet is T. If it is divided in four equal parts along its axis and perpendicular to its axis as shown then time period for each part will be
| (a) 4T | (b) T/4 | (c) T/2 | (d) T |
Which of the following logic gate is an universal gate
|
(a) OR |
(b) NOT |
(c) AND |
(d) NOR |

Which of the following waves have the maximum wavelength
|
(a) X-rays |
(b) I.R. rays |
(c) UV rays |
(d) Radio waves |
If T is the half life of a radioactive material, then the fraction that would remain after a time
is
|
(a) |
(b) |
(c) |
(d) |