If eight identical drops are joined to form a bigger drop, the potential on bigger as compared to that on smaller drop will be
|
(a) Double |
(b) Four times |
(c) Eight times |
(d) One time |
(b) Four times
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The effective resistance of two resistors in parallel is 
. If one of the resistors is disconnected the resistance becomes 4 W. The resistance of the other resistor is
|
(a) 4 W |
(b) 3 W |
(c) |
(d) |
The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is
|
(a) Double the earlier value |
(b) Unchanged |
|
(c) More than doubled |
(d) Less than doubled |
A coil of inductance 8.4 mH and resistance 6 W is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time
|
(a) 500 sec |
(b) 20 sec |
(c) 35 milli sec |
(d) 1 milli sec |
