1 |
Orbitals having same energy are called. |
- A. Hybrid orbitals
- B. Valance orbitals
- C. Degenerate orbitals
- D. d- orbitals
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2 |
Positive rays were discovered by. |
- A. J.J.Thomson
- B. Goldstein
- C. Ruther ford
- D. William Crookes
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3 |
The Rutherford experiment of using a stream of alpha particles on a piece of gold foil proved that. |
- A. The atom was a solid sphere
- B. The atom had electron
- C. The atom had neutrons
- D. The atom had a great empty space in it
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4 |
The mass of alpha particle is equal to. |
- A. Four times the mass of one proton
- B. That of one hydrogen atom
- C. That of one electron
- D. That of one proton
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5 |
Which particle have greater wave nature. |
- A. Electron
- B. Proton
- C. Neutron
- D. a particles
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6 |
Which of the following orbitals is not possible. |
|
7 |
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
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8 |
As the quantum number n increases, the energy difference between adjacent energy level. |
- A. Increase
- B. Remain same
- C. Decrease
- D. No correlation
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9 |
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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10 |
Lyman series lies in spectral region |
- A. Infrared
- B. Ultra violet
- C. Visible
- D. None of these
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