| 1 |
Emission of ratiations from nucleus is said to be |
- A. Chemical reaction
- B. Atomic reaction
- C. Radioactivity
- D. Nuclear fission
|
| 2 |
----------------- rays are used to detect the flaws and crocks of metal parts. |
- A. a -rays
- B. gama rays
- C. beta rays
- D. None of these
|
| 3 |
Laser surgery is of special importance in |
- A. heart operation
- B. kidney operation
- C. liver operation
- D. cancer operation
|
| 4 |
In ........ henry Bequeral discovered. |
- A. 1895
- B. 1886
- C. 1896
- D. 1898
|
| 5 |
Radioactivity occurs naturally from all the elecments with atomic number greater than. |
|
| 6 |
the test that measures the electrical activity of the heart: |
- A. E.C.G (Electrocardiogram)
- B. E.E.G (Electroencephalography)
- C. M.R.I (Magnetic resonance imaging)
- D. Angiography
|
| 7 |
Frequency of ultrasound is. |
- A. Less than 20 Hz
- B. 20 KHz
- C. 30 KHz
- D. More than 20 khn
|
| 8 |
The process of manufacturing food in pants; |
- A. Respiration
- B. Digestion
- C. Fermentation
- D. Photosynthesis
|
| 9 |
When a ray of light passes from a denser to a rare medium it; |
- A. bends away form the normal to the interface
- B. bends towards the normal
- C. does no bend
- D. non of the above
|
| 10 |
The Phenomenon of emission of radiations from radioactive elements is called: |
- A. Doping
- B. Allotropy
- C. Radioactivity
- D. Induction
|
