Explanation:
Work done by a system, $\text{W}=\int\text{PdV}$
Here,
P = Pressure on the system
dV = change in volume
Since dV is positive, i.e. the volume is continuously increasing, work done by the system also continuously increases.
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When light of wavelength λ is incident on an equilateral prism kept in its minimum deviation position, it is found that the angle of deviation equals the angle of the prism itself. The refractive index of the material of the prism for the wavelength λ is, then
|
(a) |
(b) |
(c) 2 |
(d) |
The variation of anode current in a triode corresponding to a change in grid potential at three different values of the plate potential is shown in the diagram. The mutual conductance of the triode is
| (a) 2.5 m mho | (b) 5.0 m mho |
(c) 7.5 m mho |
(d) 10.0 m mho |
A nucleus is bombarded with a high speed neutron so that resulting nucleus is a radioactive one. This phenomenon is called
| (a) Artificial radioactivity | (b) Fusion | (c) Fission | (d) Radioactivity |
Neutrino is a particle, which is
|
(a) Charged and has spin |
(b) Charged and has no spin |
|
(c) Charge less and has spin |
(d) Charge less and has no spin |
