The energy stored in the condenser is
|
(a) QV |
(b) |
(c) |
(d) |
The energy stored in the condenser is
|
(a) QV |
(b) |
(c) |
(d) |
(b)
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A Daniel cell is balanced on 125 cm length of a potentiometer wire. Now the cell is short-circuited by a resistance 2 ohm and the balance is obtained at 100 cm. The internal resistance of the Daniel cell is
|
(a) 0.5 ohm |
(b) 1.5 ohm |
(c) 1.25 ohm |
(d) 4/5 ohm |
The area of the plates of a parallel plate condenser is A and the distance between the plates is 10 mm. There are two dielectric sheets in it, one of dielectric constant 10 and thickness 6mm and the other of dielectric constant 5 and thickness 4mm. The capacity of the condenser is
|
(a) |
(b) |
(c) |
(d) 1500 |
If the separation between slits in Young’s double slit experiment is reduced to the fringe width becomes n times. The value of n is
|
(a) 3 |
(b) |
(c) 9 |
(d) |