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Chapter 19 - Dawn of ModernMhysics - 7
1.
Plank explained the black body in terms of quantum concept of electromagnetic radiation.
a) False
b) True
2.
The classical theory can explain the threshold frequency of light.
a) True
b) False
3.
The metal surface which emits electrons is usually called as photo emissive surface.
a) True
b) False
4.
Photoelectric effect depends upon the colour of metals.
a) True
b) False
5.
Compton’s experimental result is a confirmation of particle like interaction of electromagnetic waves with matter.
a) False
b) True
6.
The rest mass of photon is infinite.
a) True
b) False
7.
The energy of photon goes on increasing by increasing the frequency.
a) False
b) True
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