MCQ
The force that a unit positive charge would experiences if placed at that point is called as _____ due to charge at a point in space.
- AElectric charge.
- BElectric field.
- CBoth a and b.
- DNone.
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A plane mirror produces an image that is:
A star which appears blue will be
|
(a) As hot as the sun |
(b) Cooler than the sun |
|
(c) Very cold indeed |
(d) Much hotter than the sun |
Outside a nucleus
|
(a) Neutron is stable |
|
(b) Proton and neutron both are stable |
|
(c) Neutron is unstable |
|
(d) Neither neutron nor proton is stable |

For the Bohr's first orbit of circumference 2πr, the de-Broglie wavelength of revolving electron will be
|
(a) 2πr |
(b) πr |
(c) |
(d) |
Three capacitances of capacity 10 μF, 5 μF and 5 μF are connected in parallel. The total capacity will be
|
(a) 10 μF |
(b) 5 μF |
(c) 20 μF |
(d) None of the above |