| 1 |
Transition from various energy levels to the lowest energy level gives. |
- A. Lyman series
- B. Balmer series
- C. Panchen sereis
- D. Pfund series
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| 2 |
Which of the following wave properties is inversely proportional to the energy for electromagnetic radiations |
- A. Frequency
- B. Wave number
- C. Velocity
- D. Wave length
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| 3 |
The nature of positive rays depends on |
- A. The nature of electrode.
- B. The nature of discharge tube
- C. The nature of residual gas
- D. All of the above
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| 4 |
X- rays have same nature as |
- A. Alpha rays
- B. Beta rays
- C. Gamma rays
- D. Cathods rays
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| 5 |
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
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| 6 |
Positive rays were discovered by. |
- A. J.J.Thomson
- B. Goldstein
- C. Ruther ford
- D. William Crookes
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| 7 |
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
|
| 8 |
From which quantum number is the shape of an orbital determined. |
- A. Principal
- B. Magnetic
- C. Azimuthal
- D. Spin
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| 9 |
Which one of the following has the same number of electrons as an alpha particle. |
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| 10 |
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
|