Options:
- A. Zero magnitude
- B. No specified direction
- C. Both A and B are correct
- D. Both A and B are not correct
View Answer
C. Both A and B are correct
Physics
Antimatter consists of ______________?
Options:
- A. Antiproton
- B. Antineutron
- C. Positron
- D. All of above
View Answer
D. All of above
The charge on neutron is_______________?
Options:
- A. Plus 1.6 x 10-19C
- B. Zero
- C. Minus 1.6 x 10-19C
- D. No definite charge
View Answer
B. Zero
A field in which the work done in a moving a body along closed path is zero is called________________?
Options:
- A. electric field
- B. conservative field
- C. electromagnetic field
- D. gravitational field
View Answer
B. conservative field
Propulsion force of a rocket is____________________?
Options:
- A. non-conservative force
- B. conservative force
- C. both A and B
- D. none of these
View Answer
A. non-conservative force
Materials in which valence electrons are tightly bound to their atoms at low temperature are called___________________?
Options:
- A. Semi conductor
- B. Super conductors
- C. Insulators
- D. Conductor
View Answer
C. Insulators
The curie temperature is that at which ____________________?
Options:
- A. Semi-conductor becomes conductors
- B. Ferromagnetic becomes paramagnetic
- C. Paramagnetic becomes diamagnetic
- D. Metals become super conductor
View Answer
B. Ferromagnetic becomes paramagnetic
The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________?
Options:
- A. 1T = 103 G
- B. 1T = 10-4 G
- C. 1T = 10-2 G
- D. 1T = 104 G
View Answer
D. 1T = 104 G
A magnetic compass will be deflected if it is kept near a____________________?
Options:
- A. charge in motion
- B. charge at rest
- C. both
- D. none
View Answer
A. charge in motion
An alternating current or voltage_____________________?
Options:
- A. fluctuates off and on
- B. varies in magnitude alone
- C. changes its direction again and again
- D. changes its magnitude harmonically and reverses its direction of flow after regularly recurring intervals
View Answer
C. changes its direction again and again