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Photon and electron are given same energy (
. Wavelength associated with photon and electron are 
and 
then correct statement will be
|
(a) |
(b) |
(c) |
(d) |
The capacities and connection of five capacitors are shown in the adjoining figure. The potential difference between the points A and B is 60 volts . Then the equivalent capacity between A and B and the charge on 5μF capacitance will be respectively
|
(a) 44 μF, 300 μC |
(b) 16 μF, 150 μC |
(c) 15 μF, 200 μC |
(d) 4 μF, 50 μC |
A chain reaction is continuous due to
|
(a) Large mass defect |
|
(b) Large energy |
|
(c) Production of more neutrons in fission |
|
(d) None of these |
A given charge is situated at a certain distance from an electric dipole in the end-on position experiences a force F. If the distance of the charge is doubled, the force acting on the charge will be
|
(a) 2F |
(b) F / 2 |
(c) F / 4 |
(d) F / 8 |
Two wires ‘A’ and ‘B’ of the same material have their lengths in the ratio 1 : 2 and radii in the ratio 2 : 1. The two wires are connected in parallel across a battery. The ratio of the heat produced in ‘A’ to the heat produced in ‘B’ for the same time is
|
(a) 1 : 2 |
(b) 2 : 1 |
(c) 1 : 8 |
(d) 8 : 1 |
