Complete the equation for the following fission process ![]()
|
(a) |
(b) |
(c) |
(d) |
Complete the equation for the following fission process ![]()
|
(a) |
(b) |
(c) |
(d) |
(a)
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Diode is used as a/an
|
(a) Oscillator |
(b) Amplifier |
(c) Rectifier |
(d) Modulator |
A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed
away, the number of electrons emitted by photo cathode would
|
(a) Decrease by a factor of 2 |
(b) Increase by a factor of 2 |
|
(c) Decrease by a factor of 4 |
(d) Increase by a factor of 4 |
When current is passed in antimony-bismuth couple, then
|
(a) The junction becomes hot when the current is from bismuth to antimony |
|
(b) The junction becomes hot when current flows from antimony to bismuth |
|
(c) Both junctions become hot |
|
(d) Both junctions become cold |
In the graph given below. If the slope is 4.12
V-sec, then value of ‘h’ should be

|
(a) 6.6 |
(b) 6.6 |
(c) 9.1 |
(d) None of these |
The capacitance between the points A and B in the given circuit will be
|
(a) 1 μF |
(b) 2 μF |
(c) 3 μF |
(d) 4 μF |
A glass rod rubbed with silk is used to charge a gold leaf electroscope and the leaves are observed to diverge. The electroscope thus charged is exposed to X-rays for a short period. Then
|
(a) The divergence of leaves will not be affected |
|
(b) The leaves will diverge further |
|
(c) The leaves will collapse |
|
(d) The leaves will melt |
Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å. The value of the lattice constant for this lattice is
|
(a) 1.27 Å |
(b) 5.08 Å |
(c) 2.54 Å |
(d) 3.59 Å |