| 1 |
X-rays were discovered by |
- A. Curie
- B. Henry Becquerel
- C. Rontgen
- D. None of these
|
| 2 |
The first spectral lines were discovered in 1885, were |
- A. Paschen series
- B. Balmer series
- C. Pfund series
- D. Bracket series
|
| 3 |
Bremsstrahlung radiation are examples of |
- A. Atomic spectra
- B. Molecular spectra
- C. Continuous spectra
- D. Discrete spectra
|
| 4 |
Charge on positron is: |
- A. Negative
- B. Positive
- C. Netural
- D. None of these
|
| 5 |
If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is: |
- A. 10.2 eV
- B. 0 eV
- C. 3.4 eV
- D. 6.8 eV
|
| 6 |
Kx -Xrays are produced due to transition of electron from. |
- A. K to L shell
- B. L to K shell
- C. M to K shell
- D. M to L shell
|
| 7 |
Production of x rays is reverse process of |
- A. Photo electric effect
- B. Compton effect
- C. An nihilation
- D. Pair production
|
| 8 |
1 rad = |
- A. 0.001Gy
- B. 0.01Gy
- C. 0.1Gy
- D. 1.01Gy
|
| 9 |
We can find from de Broglie formula |
- A. Wavelength
- B. Amplitude
- C. Speed of wave
- D. Frequency of wave
|
| 10 |
Which is not true for X rays |
- A. X rays are not defected by electric field
- B. X rays are polarized
- C. X rays consist of electromagnetic waves
- D. X rays can be diffracted by grating
|
