MCQ
If a body is charged by rubbing it, its weight
- ARemains precisely constant.
- BIncreases slightly.
- CDecreases slightly.
- DMay increase slightly or may decrease slightly.
✓
Answer
- May increase slightly or may decrease slightly.
Explanation:
If a body is charged by rubbing it, its weight may increase slightly or may decrease slightly.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If a star is moving towards the earth, then the lines are shifted towards
|
(a) Red |
(b) Infrared |
(c) Blue |
(d) Green |
A parallel monochromatic beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of incident beam. At the first maximum of the diffraction pattern the phase difference between the rays coming from the edges of the slit is
|
(a) 0 |
(b) |
(c) |
(d) 2 |
Susceptibility is positive and large for a:
At a distance of 10 cm from a long straight wire carrying current, the magnetic field is 0.04 T. At the distance of 40 cm, the magnetic field will be
|
(a) 0.01 T |
(b) 0.02 T |
(c) 0.08 T |
(d) 0.16 T |
Equipotential surfaces associated with an electric field which is increasing in magnitude along the x-direction are
|
(a) Planes parallel to yz-plane |
|
(b) Planes parallel to xy-plane |
|
(c) Planes parallel to xz-plane |
|
(d) Coaxial cylinders of increasing radii around the x-axis |
The direction of electric field is from:
The cellular mobile radio frequency band is:
The working of dynamo is based on the principle of :
If a piece of metal was thought to be magnet, which one of the following observations would offer conclusive evidence
|
(a) It attracts a known magnet |
(b) It repels a known magnet |
|
(c) Neither (a) nor (b) |
(d) It attracts a steel screw driver |
An electric dipole is kept in non-uniform elecric field. it experiences?