- ✓Follow the principle of superposition
- BDo not follow the principle of superposition
- COnly show superposition
- DOnly show interference
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Order of q/m ratio of proton, α -particle and electron is
|
(a) e > p > α |
(b) p > α > e |
(c) e > α > p |
(d) None of these |
A parallel plate condenser with oil between the plates (dielectric constant of oil K = 2) has a capacitance C. If the oil is removed, then capacitance of the capacitor becomes
|
(a) |
(b) 2C |
(c) |
(d) |
Five resistors of given values are connected together as shown in the figure. The current in the arm BD will be
|
(a) Half the current in the arm ABC |
(b) Zero |
|
(c) Twice the current in the arm ABC |
(d) Four times the current in the arm ABC |
The resistance of a metal wire increases with increasing temperature on account of:
A current of 1 ampere is passed through a straight wire of length 2.0 metres. The magnetic field at a point in air at a distance of 3 metres from either end of wire and lying on the axis of wire will be
|
(a) |
(b) |
(c) |
(d) Zero |
Two charges of equal magnitudes and at a distance r exert a force F on each other. If the charges are halved and distance between them is doubled, then the new force acting on each charge is
|
(a) F / 8 |
(b) F / 4 |
(c) 4 F |
(d) F / 16 |
In the following diagram if V2 > V1 then

|
(a) |
(b) |
(c) |
(d) |