Options:
- A. X-rays
- B. Gamma rays
- C. UV-rays
- D. IR-rays
View Answer
B. Gamma rays
Physics
A digit zero in a measurement__________________?
Options:
- A. May be significant may not significant
- B. Always significant
- C. Always insignificant sign
- D. Significant only if left to a significant figure
View Answer
A. May be significant may not significant
A device for producing high-velocity nuclei is ________________?
Options:
- A. Cloud chamber
- B. Linear accelerator
- C. A mass spectrograph
- D. Wilson cloud chamber
View Answer
B. Linear accelerator
The unit of radioactivity curie is equal to________________?
Options:
- A. 3.74 x 109 disintegration per sec
- B. 3.70 x 1010 disintegration per sec
- C. 3.55 x 1010 disintegration per sec
- D. 3.60 x 1010 disintegration per sec
View Answer
B. 3.70 x 1010 disintegration per sec
The penetration power of alpha particle as compared to beta particle is_______________?
Options:
- A. 10 times more
- B. 100 times more
- C. 100 times less
- D. 10 times less
View Answer
B. 100 times more
During the fission process a large amount of______________?
Options:
- A. Heat energy is released
- B. Nuclear energy is released
- C. Chemical energy is released
- D. Light energy is released
View Answer
B. Nuclear energy is released
Geiger counter is suitable for _________________?
Options:
- A. Fast counting
- B. Extremely fast counting
- C. Slow counting
- D. All situations
View Answer
C. Slow counting
Ina liquid metal fast breeder reactor, the type of uranium used is______________?
Options:
- A. 92U235
- B. 92U238
- C. 92U234
- D. 92U239
View Answer
B. 92U238
An alpha particle can produce fluorescence in__________________?
Options:
- A. ZnS
- B. Barium platinocyanide
- C. Calcium tungstate
- D. All of above
View Answer
D. All of above
Radioactive materials can be identified by measuring their_______________?
Options:
- A. Hardness
- B. Density
- C. Mass
- D. Half life
View Answer
D. Half life