Options:
- A. Cobalt-60
- B. Strontium-90
- C. Carbon-14
- D. Nickel-63
View Answer
A. Cobalt-60
Physics
Sterilization of surgical instruments medical supplies and bandages can be done by exposing them to a beam of_______________?
Options:
- A. ?-rays
- B. ?-rays
- C. ?-rays
- D. B and C have equal antiseptic propertie
View Answer
C. ?-rays
Nuclei having the same mass number but different atomic number are____________?
Options:
- A. Isotopes
- B. Isobars
- C. Isotones
- D. Isomers
View Answer
B. Isobars
The charge on alpha particles is________________?
Options:
- A. Plus one
- B. Plus two
- C. Minus two
- D. Minus one
View Answer
B. Plus two
A mass spectrograph (spectrometer) sorts out____________?
Options:
- A. Molecules
- B. Ions
- C. Elements
- D. Isotopes
View Answer
C. Elements
Alpha particle ionizes an atom_________________?
Options:
- A. Through direct collision
- B. Through electrostatic attraction
- C. Through electrostatic repulsion
- D. All of above
View Answer
C. Through electrostatic repulsion
Sum of the masses of constituent nucleons as compared to the mass of the resultant nucleus is______________?
Options:
- A. Smaller
- B. Greater than 82
- C. Same
- D. Sometimes smaller some times greater
View Answer
B. Greater than 82
T.V sets and microwave ovens emit ___________________?
Options:
- A. X-rays
- B. ?-rays
- C. ?-rays
- D. ?-rays
View Answer
A. X-rays
An alpha particle is emitted from 88Ra226. What is the mass and atomic number of the daughter nucleus ?
Options:
- A. 224
- B. 220
- C. 222
- D. 226
View Answer
C. 222
An alpha particle in a single encounter__________________?
Options:
- A. Loses a small fraction of its energy
- B. Losses most of its energy
- C. Loses no energy at all
- D. Loses all of its energy
View Answer
B. Losses most of its energy