MCQ
On using white light in Young's double slit experiment:
- AOnly white and black fringes will be obtained
- BWhite fringes will be obtained
- ✓Central fringe will be white but two-three colored fringes will appear black
- DNone of the above.
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Two conducting circular loops of radii
and
are placed in the same plane with their centres coinciding. If
, the mutual inductance M between them will be directly proportional to
|
(a) |
(b) |
(c) |
(d) |
An energy of 24.6 eV is required to remove one of the electrons from a neutral helium atom. The energy (in eV) required to remove both the electrons from a neutral helium atom is
|
(a) 79.0 |
(b) 51.8 |
(c) 49.2 |
(d) 38.2 |
The resultant capacitance between A and B in the following figure is equal to

|
(a) 1 μF |
(b) 3 μF |
(c) 2 μF |
(d) 1.5 μF |