- AEnergy.
- BCharge.
- CMomentum.
- DBoth energy and charge.
Explanation:
The Kirchoff law is applied to find the charge/ current in the circuit by applying loop rule and junction rule.
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When
transforms to
, then the number of the emitted a- and b-particles is, respectively
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(a) 8α, 7β |
(b) 4α, 7β |
(c) 4 α, 4β |
(d) 4α, 1β |
For comparing the e.m.f.'s of two cells with a potentiometer, a standard cell is used to develop a potential gradient along the wires. Which of the following possibilities would make the experiment unsuccessful
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(a) The e.m.f. of the standard cell is larger than the E e.m.f.'s of the two cells |
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(b) The diameter of the wires is the same and uniform throughout |
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(c) The number of wires is ten |
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(d) The e.m.f. of the standard cell is smaller than the e.m.f.'s of the two cells |
In an interference arrangement similar to Young's double slit experiment, the slits S1 and S2 are illuminated with coherent microwave sources each of frequency 106 Hz. The sources are synchronized to have zero phase difference. The slits are separated by distance d = 150 m. The intensity I (𝜃) is measured as a function of q, where q is defined as shown. If I0 is maximum intensity, then I(θ) for 0 ≤ θ ≤ 90° is given by
|
(a) I(θ) = |
(b) I(θ) = |
|
(c) I(θ) = |
(d) a, b |
A real image is formed by:
The ratio of the magnetic field at the centre of a current carrying circular wire and the magnetic field at the centre of a square coil made from the same length of wire will be
|
(a) |
(b) |
(c) |
(d) |