- Must be longitudinal
- May be longitudinal
- Must be transverse
- May be transverse.
Explanation:
Particles in a solid are very close to each other; thus. both longitudinal and transverse waves can travel through it.
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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 |
Radioactivity is
|
(a) Irreversible process |
(b) Self disintegration process |
|
(c) Spontaneous process |
(d) All of the above |
Three observers A, B and C measure the speed of light coming from a source to be and
. The observer A moves towards the source, the observer C moves away from the source with the same speed. The observer B stays stationary. the surrounding space is vacuum every where. Then
|
(a) |
(b) |
(c) |
(d) |
The momentum of a photon is 2
gm-cm/sec. Its energy is
|
(a) 0.61 |
(b) 2.0 |
(c) 6 |
(d) 6 |
The torque acting on a dipole of moment in an electric field
is
|
(a) |
(b) |
(c) Zero |
(d) |
An a-particle of 5 MeV energy strikes with a nucleus of uranium at stationary at an scattering angle of 180o. The nearest distance upto which a-particle reaches the nucleus will be of the order of
|
(a) 1 Å |
(b) |
(c) |
(d) |