For the diode, the characteristic curves are given at different temperature. The relation between the temperatures is
(a) 
|
(b) 
|
(c) 
|
(d) None of the above |
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The electron in a hydrogen atom makes a transition 
, where 
and 
are the principal quantum numbers of the two states. Assume the Bohr model to be valid. The time period of the electron in the initial state is eight times that in the final state. The possible values of n1 and n2 are
|
(a) |
(b) |
(c) |
(d) |
To make a PN junction conducting
|
(a) The value of forward bias should be more than the barrier potential |
|
(b) The value of forward bias should be less than the barrier potential |
|
(c) The value of reverse bias should be more than the barrier potential |
|
(d) The value of reverse bias should be less than the barrier potential |
200 MeV of energy may be obtained per fission of 
. A reactor is generating 1000 kW of power. The rate of nuclear fission in the reactor is
|
(a) 1000 |
(b) 2 |
(c) 3.125 |
(d) 931 |
Energy of 1g uranium is equal to
|
(a) 9.0 |
(b) 9.0 |
(c) 3.0 |
(d) 3.0 |
