Options:
- A. nature of conductor
- B. dimension of conductor
- C. physical state of the conductor
- D. all of above
View Answer
D. all of above
Physics
A fuse is placed in series with the circuit to protect against__________________?
Options:
- A. high power
- B. high voltage
- C. high current
- D. over heating
View Answer
D. over heating
Which one of the following cannot be polarized ?
Options:
- A. radio waves
- B. ultraviolot rays
- C. X-rays
- D. sound waves
View Answer
D. sound waves
A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to ____________________?
Options:
- A. 500 mm
- B. 5 x 10-3 mm
- C. 2 x 10-5 mm
- D. 2 x 10-3 mm
View Answer
D. 2 x 10-3 mm
The first book of Physics was written by__________?
Options:
- A. Kelvin
- B. Newton
- C. Aristotle
- D. Faraday
View Answer
C. Aristotle
When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________?
Options:
- A. Centripetal force
- B. Gravitational force
- C. Their inertia
- D. Centrifugal force
View Answer
D. Centrifugal force
Momentum depends upon__________________?
Options:
- A. force acts on the body
- B. mass of the body
- C. velocity of the body
- D. both mass and velocity of the body
View Answer
D. both mass and velocity of the body
A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?
Options:
- A. always an node in formed
- B. always an antinode is formed
- C. neither node nor antinode is formed
- D. sometimes a node and sometimes an antinode is formed
View Answer
A. always an node in formed
It is possible to distinguish between transverse and longitudinal waves form the property of __________________?
Options:
- A. refraction
- B. polarization
- C. interference
- D. diffraction
View Answer
B. polarization
A wire having very high value of conductance is said to be____________________?
Options:
- A. very good conductor
- B. moderately good conductor
- C. an insulator
- D. no specific criterion available
View Answer
A. very good conductor