- APower
- BCurrent
- CEnergy
- DCharge
Explanation:
Charge is given by the relation, q = I × t
so its unit is ampere - sec
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The unit for molar susceptibility is
|
(a) m3 |
(b) kg-m–3 |
(c) kg–1 m3 |
(d) No units |
The human eye has a lens which has a
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(a) Soft portion at its centre |
(b) Hard surface |
|
(c) Varying refractive index |
(d) Constant refractive index |
Assertion : In all conductors, for studying the thermoelectric behaviour or metals, lead is taken as a reference metal.
Reason : In lead, the Thomson effect is negative.
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If the assertion and reason both are false. |
The wavelength of X-rays is of the order of
|
(a) Centimetre |
(b) Micron (10-6 m) |
(c) Angstrom (10-10 m) |
(d) Metre |
Thomson coefficient of a conductor is 10μV/K. The two ends of it are kept at 50℃ and 60℃ respectively. Amount of heat absorbed by the conductor when a charge of 10C flows through it is
|
(a) 1000 J |
(b) 100 J |
(c) 100 mJ |
(d) 1 mJ |

For the structural analysis of crystals, X-rays are used because
|
(a) X-rays have wavelength of the order of interatomic spacing |
|
(b) X-rays are highly penetrating radiations |
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(c) Wavelength of X-rays is of the order of nuclear size |
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(d) X-rays are coherent radiations |
The number of electrons to be put on a spherical conductor of radius 0.1m to produce an electric field of 0.036 N/C just above its surface is
|
(a) 2.7 |
(b) 2.6 |
(c) 2.5 |
(d) 2.4 |