| 1 |
How many electrons can be accommodated in sub shell for which n = 3, l = 1 |
|
| 2 |
Splitting of spectral lines when atoms are subjected to strong electric field is called. |
- A. Zeeman effect
- B. Stark effect
- C. Photoelectric effect
- D. Compton effect
|
| 3 |
As the quantum number n increases, the energy difference between adjacent energy level. |
- A. Increase
- B. Remain same
- C. Decrease
- D. No correlation
|
| 4 |
If uncertainty in position of electron is zero, the uncertainty in its momentum would be. |
- A. zero
- B. Less than zero
- C. Infinite
- D. One
|
| 5 |
Which of the following orbitals is not possible. |
|
| 6 |
Bohr's model of atom is contradicted b y. |
- A. Planck quantum theory
- B. Quantization of energy of electrons
- C. Heisenberg's uncertainty principle
- D. Quantization of angular momentum
|
| 7 |
De Broglie equation treats electron to be. |
- A. A particle
- B. Wave
- C. Both particle and wave
- D. None of these
|
| 8 |
The line of the balmer series in the visible region of the spectrum, but the limiting line, in the series lies in |
- A. Visible region
- B. X-Ray region
- C. I.R region
- D. U.V. region
|
| 9 |
If the electron in a hydrogen atom drops from n = 6 to n =4 level, the radiation emitted is in which series of lines in the spectrum of atomic hydrogen. |
- A. Lyman
- B. Balmer
- C. Paschen
- D. Brackett
|
| 10 |
The electron in a subshell is filled according to formula. |
- A. 2n<sup>2</sup>
- B. 2(2l+1)
- C. (2l+1)
- D. None of these
|