Question
Tangent galvanometer is used to measure
| (a) Steady currents | (b) Current impulses |
| (c) Magnetic moments of bar magnets | (d) Earth's magnetic field |
Tangent galvanometer is used to measure
| (a) Steady currents | (b) Current impulses |
| (c) Magnetic moments of bar magnets | (d) Earth's magnetic field |
(a) Steady currents
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Magnifying power of a simple microscope is (when final image is formed at D = 25 cm from eye)
|
(a) |
(b) 1 + |
(c) |
(d) |
If current flowing through shell of previous objective is equal to i, then energy density at a point distance 2R from axis of the shell varies according to the graph
|
(a) |
(b) |
(c) |
(d) |
Radioactivity was discovered by
|
(a) Becquerel |
(b) Pierre Curie |
(c) Roentgen |
(d) Rutherford |