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Atomic Structure - 2
1.
The e/m value for an electron is equal to ________.
a) 0.7588X10+11 coulumbs Kg
-1
b) 1.7588X10+11 coulumbs Kg
-1
c) 1.7588X11+10 coulumbs Kg
-1
d) 1.7588X10+12 coulumbs Kg
-1
2.
Ruther-ford in his experiment used the photographic film as a detector which was coated with________
a) Absorption.
b) -particle.
c) Zinc sulphide
d) Emission
3.
Max Plank proposed the quantum theory in 1900 to explain the _____ and _______ of radiations.
a) Electric & Magnetic
b) Emission & Absorption.
c) Zinc sulphide
d) Negatively charged.
4.
For d sub-shell there are five values of _______ number.
a) Magnetic quantum
b) Negatively charged.
c) Electric Magnetic
d) Emission Absorption.
5.
The e/m value for the positive rays is maximum for.
a) Helium
b) Nitrogen.
c) Oxygen.
d) Hydrogen
6.
Neutron was discovered by Chadwick in.
a) 1932
b) 1934
c) 1935
d) 1930
7.
The velocity of photon is
a) Independent of its wavelength.
b) Equal to velocity of light.
c) Equal to its wave number.
d) The velocity of photon is
8.
Quantum number values for 3p orbitals are.
a) n=1,l=3
b) n=3,l=1
c) n=2,l=1
d) n=0,l=3
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