- ANuclear force
- BCoulomb force
- CBoth A and B
- DGravitational force
Explanation:
Coulomb force is responsible for scattering of particles. When the alpha particles (positive in charge) get closer to the nucleus, which is positive in charge, they get repelled through various angles.
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A proton is moving along Z-axis in a magnetic field. The magnetic field is along X-axis. The proton will experience a force along
|
(a) X-axis |
(b) Y-axis |
(c) Z-axis |
(d) Negative Z-axis |
For the production of X-rays of wavelength 0.1 Å the minimum potential difference will be
|
(a) 12.4 kV |
(b) 24.8 kV |
(c) 124 kV |
(d) 248 kV |
Magnetic moments of two bar magnets may be compared with the help of
| (a) Deflection magnetometer | (b) Vibration magnetometer |
| (c) Both of the above | (d) None of the above |
Electric potential at an equatorial point of a small dipole with dipole moment P (r, distance from the dipole) is
|
(a) Zero |
(b) |
(c) |
(d) |