The relation between a and b parameters of current gains for a transistors is given by
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(a) α = |
(b) α = |
(c) α = |
(d) α = |
The relation between a and b parameters of current gains for a transistors is given by
|
(a) α = |
(b) α = |
(c) α = |
(d) α = |
(b) α = ![]()
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An uncharged capacitor is connected to a battery. On charging the capacitor
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(a) All the energy supplied is stored in the capacitor |
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(b) Half the energy supplied is stored in the capacitor |
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(c) The energy stored depends upon the capacity of the capacitor only |
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(d) The energy stored depends upon the time for which the capacitor is charged |
A current carrying solenoid is approaching a conducting loop as shown in the figure. The direction of induced current as observed by an observer on the other side of the loop will be

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(a) Anticlockwise |
(b) Clockwise |
(c) East |
(d) West |
A screen is placed a distance 40cm away from an illuminated object. A converging lens is placed between the source and the screen and it is attempted to form the image of the source on the screen. If no position could be found, the focal length of the lens:
In a Young’s double slit experiment, the slit separation is 0.2 cm, the distance between the screen and slit is 1m. Wavelength of the light used is 5000 Å. The distance between two consecutive dark fringes (in mm) is
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(a) 0.25 |
(b) 0.26 |
(c) 0.27 |
(d) 0.28 |
Magnetic fields at two points on the axis of a circular coil at a distance of 0.05m and 0.2m from the centre are in the ratio 8 : 1. The radius of the coil is
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(a) 1.0 m |
(b) 0.1 m |
(c) 0.15 m |
(d) 0.2 m |
For moving ball of cricket, the correct statement about de-Broglie wavelength is
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(a) It is not applicable for such big particle |
(b) |
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(c) |
(d) |