Options:
- A. 10 cm
- B. 5 cm
- C. 15 cm
- D. 7.5 cm
View Answer
B. 5 cm
Physics
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
Pair production can take place only with_________________?
Options:
- A. X-rays
- B. Gamma rays
- C. UV-rays
- D. IR-rays
View Answer
B. Gamma rays
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
The unit of force is _________ and its symbol is ______________ Which is the correct pair ?
Options:
- A. Newton, n
- B. Newton, N
- C. newton, n
- D. newton, N
View Answer
D. newton, N
Geostationary satellite completes one rotation around the earth in_______________?
Options:
- A. 3 hours
- B. 6 hours
- C. 12 hours
- D. 24 hours
View Answer
D. 24 hours
A body can have constant velocity when it follows a_____________?
Options:
- A. Elliptical path
- B. Circular path
- C. Parabolic path
- D. Rectilinear path
View Answer
D. Rectilinear path
Minimum number of communication satellites required to cover the whole earth is______________?
Options:
- A. 4
- B. 3
- C. 2
- D. 5
View Answer
B. 3
The equation of continuity is obtained by applying in the law of conservation of_____________?
Options:
- A. Mass
- B. Energy
- C. Momentum
- D. All
View Answer
A. Mass