- AMaximum
- BMinimum
- CConstant
- DZero
Explanation:
The potential difference between any two points on an equipotential surface is zero.
Work done = Test charge x potential difference(0)
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When a wave travels from one medium to another, the quantity which will not change is its:
Work function of a metal is 2.51 eV. Its threshold frequency is
|
(a) 5.9 |
(b) 6.5 |
|
(c) 9.4 |
(d) 6.08 |
The mass defect per nucleon is called
|
(a) Binding energy |
(b) Packing fraction |
(c) Ionisation energy |
(d) Excitation energy |
A thin lens made of glass of refractive index m = 1.5 has a focal length equal to 12 cm in air. It is now immersed in water Its new focal length is
|
(a) 48 cm |
(b) 36 cm |
(c) 24 cm |
(d) 12 cm |