Options:
- A. same current
- B. same current and potential difference
- C. different current but same potential difference
- D. different current and potential differences
View Answer
C. different current but same potential difference
Physics
Electrical energy is converted to heat at the rate of___________________?
Options:
- A. IRt
- B. I2R
- C. I2Rt
- D. VIt
View Answer
B. I2R
In a plane polarized light _________________?
Options:
- A. vibration in all direction
- B. vibration in two mutually perpendicular directions
- C. vibration take place in a direction perpendicular to the direction of propagation of light
- D. no vibration at all
View Answer
C. vibration take place in a direction perpendicular to the direction of propagation of light
Diffraction effect is____________________?
Options:
- A. more for a round edge
- B. less for a round edge
- C. more for a sharp edge
- D. less for a sharp edge
View Answer
C. more for a sharp edge
Study of living science relates with________?
Options:
- A. Physical science
- B. Biological science
- C. Just living science
- D. Organ science
View Answer
B. Biological science
The collision between two bodies be elastic if bodies are_________________?
Options:
- A. solid and soft
- B. soft and elastic
- C. solid and hard
- D. hard and elastic
View Answer
C. solid and hard
2nd law of motion gives the definition of________________?
Options:
- A. force
- B. acceleration
- C. velocity
- D. both force and acceleration
View Answer
B. acceleration
In vibrating cord the points where the amplitude is maximum, are called ___________________?
Options:
- A. antinodes
- B. nodes
- C. troughs
- D. crests
View Answer
A. antinodes
If stretching force T of wire increases, then its frequency __________________?
Options:
- A. decreases
- B. increases
- C. remains the same
- D. any of above
View Answer
B. increases
The current through a metallic conductor is due to the motion of _________________?
Options:
- A. free electrons
- B. protons
- C. neutrons
- D. still under controversy
View Answer
A. free electrons