The previous statement describes the essence of which theory?
- ANewton's law of universal gravitation
- BChaos theory
- CRelativity
- DQuantum Theory
Explanation:
The statement has the essence of quantum theory which postulates that both the position and momentum cannot be precisely measured at the same instant. This is called Uncertainty Principle. An associated error always exists in either or both. Hence behavior of complex systems becomes much more difficult to analyse and impossible to predict.
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The ratio of real depth to apparent depth is called the the:
The order of the size of nucleus and Bohr radius of an atom respectively are
|
(a) |
(b) |
(c) |
(d) |
A charge q is moving in a magnetic field then the magnetic force does not depend upon
|
(a) Charge |
(b) Mass |
(c) Velocity |
(d) Magnetic field |
An electron moving towards the east enters a magnetic field directed towards the north. The force on the electron will be directed
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(a) Vertically upward |
(b) Vertically downward |
|
(c) Towards the west |
(d) Towards the south |
A conducting wire is moving towards right in a magnetic field B. The direction of induced current in the wire is shown in the figure. The direction of magnetic field will be

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(a) In the plane of paper pointing towards right |
|
(b) In the plane of paper pointing towards left |
|
(c) Perpendicular to the plane of paper and down‑wards |
|
(d) Perpendicular to the plane of paper and upwards |