- AInterference
- BPhoto electric effect
- CDiffraction
- DRefraction
Explanation:
Photo electric effect
According to wave physics energy of a wave depends upon an amplitude of a wave it means that there light of any frequency can make electrons come out from metal but it did not happen, light of certain fixed frequency can make electron come out from metal. So the photoelectric effect can only be explained by particle nature of light not wave.
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The nucleus
after two successive
decays will give
|
(a) |
(b) |
(c) |
(d) |
In good conductors of electricity, the type of bonding that exists is
|
(a) Ionic |
(b) Vander Waals |
(c) Covalent |
(d) Metallic |
What type of lens from the following would you have in your magnifying lens to read a page in small print?
A moving conductor coil in a magnetic field produces an induced e.m.f. This is in accordance with
|
(a) Amperes law |
(b) Coulomb law |
(c) Lenz’s law |
(d) Faraday’s law |
The universal property of all substances is
|
(a) Diamagnetism |
(b) Ferromagnetism |
(c) Paramagnetism |
(d) All of these |