MCQ
Nuclear forces exists between:
- ANeutron - neutron.
- BProton - proton.
- CNeutron - proton.
- DAll of these.
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In Young's double slit experiment using sodium light (λ = 5898 Å), 92 fringes are seen. If given colour (λ = 5461 Å) is used, how many fringes will be seen
|
(a) 62 |
(b) 67 |
(c) 85 |
(d) 99 |
Angle of a prism is 30° and its refractive index is
and one of the surface is silvered. At what angle of incidence, a ray should be incident on one surface so that after reflection from the silvered surface, it retraces its path
|
(a) 30° |
(b) 60° |
(c) 45° |
(d) |
n equal resistors are first connected in series and then connected in parallel. What is the ratio of the maximum to the minimum resistance
|
(a) n |
(b) |
(c) |
(d) |