| 1 |
X- rays have same nature as |
- A. Alpha rays
- B. Beta rays
- C. Gamma rays
- D. Cathods rays
|
| 2 |
De Broglie equation treats electron to be. |
- A. A particle
- B. Wave
- C. Both particle and wave
- D. None of these
|
| 3 |
Quantum number values for 2p orbitals are |
- A. n = 2, l = 1
- B. n =1, 1 = 2
- C. n =1, l = 0
- D. n = 2, l = 0
|
| 4 |
Lyman series lie in |
- A. Ultraviolet region
- B. Visible region
- C. Infrared region
- D. Radio waves region
|
| 5 |
An atomic orbital has l =1 , m =+1, 0, -1, n = 3 than which one of the following atomic orbital has such values. |
|
| 6 |
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
|
| 7 |
When fast neutron carries nuclear reaction with nitrogen it ejects aprticles. |
- A. Alpha
- B. Gamma
- C. Beta
- D. Nil
|
| 8 |
The velocity of photon is. |
- A. Depends on its source
- B. Equal to square of its amplitude
- C. Depends on its wavelength
- D. Independent of its wavelength
|
| 9 |
Which one of the following relationship is correct about energy and frequency. |
- A. E = hv
- B. E = h/v
- C. E = v/h
- D. h = v/E
|
| 10 |
If uncertainty position of an electron is zero, the uncertainty in its momentum would be |
- A. Zero
- B. Infinite
- C. Both a and b
- D. None of these
|