1 |
Anode rays were discovered by |
J. Stoney
Rutherford
J.J. Thomson
Goldstein
|
2 |
The atomis radius is of the order of |
10<sup>-8</sup>cm
10<sup>8</sup>cm
10<sup>-12</sup>cm
10<sup>-10</sup>cm
|
3 |
Orbitals having same energy are called |
Hybird orbitals
Valence orbitals
Degenerate orbitals
D-orbitals
|
4 |
Quantum number value for 2p sub shell are |
n = 2, I = 1
n = 1, l =1
n = 1, l = 0
n = 2, l = 0
|
5 |
In the ground state of an atom, the electron is present |
In the nucleus
In the second shell
Nearest to the nucleus
Farthest from the nucleus
|
6 |
Splitting of spectral lines when atoms are subjected to strong electric field is called |
Zeeman effect
Stark effect
Photoelectric effect
Compton effect
|
7 |
Rutherford's model of atom failed because |
The atom did not have a nucleus and electrons
It did not account for the attraction between protons and neutrons
It did not account for the stability of the atom
There is actually no space between the nucleus and the electrons
|
8 |
The wave number of the light emitted by a certain source is 2 x 106 m. the wavelength of this light is |
500 nm
500 m
200 nm
5 x 10<sup>7</sup>m
|
9 |
The velocity of photon is |
Independent of its wavelength
Depends on its wavelength
Equal to square of its amplitude
Depends on its source
|
10 |
The nature of positive rays depends on |
The nature of electrode
The nature of discharge tube
The nature of residual gas
All of the above
|