| 1 |
The principal of light on whihc the fibre optics works is. |
- A. Reflection
- B. Refraction
- C. Total internal reflection
- D. Dispersion
|
| 2 |
Which of the following is a natural fiber: |
- A. Teflon
- B. Cotton
- C. Acrylic
- D. Nylon
|
| 3 |
The charge on alpha particle is: |
|
| 4 |
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
|
| 5 |
The mass of Beta particle: |
|
| 6 |
The process of manufacturing food in pants; |
- A. Respiration
- B. Digestion
- C. Fermentation
- D. Photosynthesis
|
| 7 |
What discovered radioactivity? |
- A. Einstein
- B. Newton
- C. J.J. Thomson
- D. Henry Becquerel
|
| 8 |
---------------- lasers are presently used for operating cataract and glaucoma. |
- A. Argon
- B. Neon
- C. Helium
- D. Hydrogen
|
| 9 |
----------------- 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
|
| 10 |
Phosphorous.... and sulphur 35 are employed on living system to trace metabolic path. |
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