Explanation:
More is the intensity of incident radiation, more is the umber of photons and thus more is the number of photo electrons emitted. This results in the increase in the photo-current.
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The impurity atoms which are mixed with pure silicon to make a P-type semiconductor are those of
|
(a) Phosphorus |
(b) Boron |
(c) Antimony |
(d) Copper |
The heat developed in an electric wire of resistance R by a current I for a time t is
|
(a) |
(b) |
(c) |
(d) |
Two insulated metallic spheres of 3 μF and 5 μF capacitances are charged to 300 V and 500V respectively. The energy loss, when they are connected by a wire is
|
(a) 0.012 J |
(b) 0.0218 J |
(c) 0.0375 J |
(d) 3.75 J |
