Question
Longitudinal waves cannot:
- Have a unique wavelength
- Transmit energy
- Have a unique wave velocity
- Be polarized.
Be polarized.
Explanation:
A longitudinal wave has particle displacement along its direction of motion; thus, it cannot be polarised.
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Dispersive power depends upon
|
(a) The shape of prism |
(b) Material of prism |
|
(c) Angle of prism |
(d) Height of the prism |

Charge on α -particle is
|
(a) |
(b) 1.6 |
(c) 3.2 |
(d) 6.4 |
A hollow conducting sphere of radius R has a charge (+Q) on its surface. What is the electric potential within the sphere at a distance r = from its centre
|
(a) Zero |
(b) |
(c) |
(d) |