- AStat Coulomb
- BCoulomb
- CEMU
- DPascal
Explanation:
The C.G.S. unit of charge is Stat Coulomb or ESU but in the SI system the unit is Coulomb. EMU is another unit of charge in the SI system. Pascal is the unit of pressure.
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Three capacitors of capacitance 1 mF, 2 mF and 3 mF are connected in series and a potential difference of 11 V is applied across the combination. Then, the potential difference across the plates of 1 mF capacitor is
|
(a) 2 V |
(b) 4 V |
(c) 1 V |
(d) 6 V |

A convex lens of power + 6D is placed in contact with a concave lens of power – 4D. What is the nature and focal length of the combination
|
(a) Concave, 25 cm |
(b) Convex, 50 cm |
(c) Concave, 20 cm |
(d) Convex, 100 cm |
Bonding in a germanium crystal (semi- conductor) is
| (a) Metallic | (b) Ionic |
(c) Vander Waal's type |
(d) Covalent |
Refractive index of glass is and refractive index of water is
. If the speed of light in glass is 2.00
m/s, the speed in water will be
|
(a) 2.67 |
(b) 2.25 |
(c) 1.78 |
(d) 1.50 |
Two capacitances of capacity and
are connected in series and potential difference V is applied across it. Then the potential difference across
will be
|
(a) |
(b) |
(c) |
(d) |