- 1(current)
Q. No.Which of the following situation(s), can cause the radiation of an electromagnetic wave?
Choose the correct option from the given ones:
| (A) | a varying sinusoidal current flowing through a capacitor |
| (B) | an electric dipole, whose size (and magnitude) is oscillating with time |
| (C) | a steady current flowing through a toroid |
Choose the correct option from the given ones:
| 1. | only (A) |
| 2. | only (B) |
| 3. | only (A) & (B) |
| 4. | (A), (B), (C) |
Subtopic: Â Generation of EM Waves |
 66%
Level 2: 60%+
Hints
Consider the following statements:
| Statement I: | Charged particles which undergo acceleration or deceleration radiate their energy away. |
| Statement II: | Therefore, charged particles moving in circular paths in a uniform magnetic field should also radiate their energy. |
| 1. | Statement I is true, Statement II is true and Statement I implies Statement II. |
| 2. | Statement I is true, Statement II is true and Statement I does not imply Statement II. |
| 3. | Statement I is true, Statement II is false. |
| 4. | Statement I is false, Statement II is true. |
Subtopic: Â Generation of EM Waves |
 53%
Level 3: 35%-60%
Hints
Out of the following options which one can be used to produce a propagating electromagnetic wave?
| 1. | a stationary charge. |
| 2. | a chargeless particle. |
| 3. | an accelerating charge. |
| 4. | a charge moving at constant velocity. |
Subtopic: Â Generation of EM Waves |
 90%
Level 1: 80%+
NEET - 2016
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- 1(current)
Q. No.
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