Options:
- A. silence zone
- B. interference
- C. beats
- D. resonance
View Answer
C. beats
Physics
Resistance of an ideal insulator is __________________?
Options:
- A. infinite
- B. zero
- C. finite
- D. depends upon nature
View Answer
A. infinite
Which one is the best material for making connecting wires ?
Options:
- A. iron
- B. tungsten
- C. silver
- D. copper
View Answer
D. copper
Longitudinal waves do not exhibit _____________________?
Options:
- A. reflection
- B. refraction
- C. diffraction
- D. polarization
View Answer
D. polarization
When light incident normally on thin film the path difference depends upon ________________?
Options:
- A. thickness of the film only
- B. nature of the film only
- C. angle of indidence only
- D. all thickness nature and angle of incidence
View Answer
D. all thickness nature and angle of incidence
When a force is parallel to the direction of motion of the body, then work done on the body is_____________________?
Options:
- A. zero
- B. minimum
- C. infinity
- D. maximum
View Answer
D. maximum
The branch of science which deals with the properties of matter and energy is called__________?
Options:
- A. Biology
- B. Geography
- C. Physics
- D. Chemistry
View Answer
C. Physics
When body is in motion, ____________ always changes?
Options:
- A. its velocity
- B. its acceleration
- C. its position vector
- D. its momentum
View Answer
C. its position vector
Flight of a rocket in the space is an example of______________________?
Options:
- A. second law of motion
- B. third law of motion
- C. first law of motion
- D. law of gravitation
View Answer
B. third law of motion
Which of the following is not an example of projectile motion ?
Options:
- A. a gas filled ballon
- B. bullet fired from gun
- C. a football kicked
- D. a base ball shot
View Answer
A. a gas filled ballon