- 1(current)
Q. No.If a source is transmitting an electromagnetic wave of frequency \(8.2\times 10^{6}~\text{Hz}\), then the wavelength of the electromagnetic wave transmitted from the source will be:
| 1. | \(36.6\) m | 2. | \(40.5\) m |
| 3. | \(42.3\) m | 4. | \(50.9\) m |
Subtopic: Â Generation of EM Waves |
 88%
Level 1: 80%+
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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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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%+
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A charged particle oscillates about its mean equilibrium position with a frequency of \(10^9\) Hz. What is the frequency of the electromagnetic waves produced by the oscillator?
1. \(10^{11}\) Hz
2. \(10^7\) Hz
3. \(10^8\) Hz
4. \(10^9\) Hz
1. \(10^{11}\) Hz
2. \(10^7\) Hz
3. \(10^8\) Hz
4. \(10^9\) Hz
Subtopic: Â Generation of EM Waves |
 80%
Level 1: 80%+
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Given below are two statements:
| Assertion (A): | A charge moving in a circular orbit can produce an electromagnetic wave. |
| Reason (R): | The source of the electromagnetic wave should be in accelerated motion. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Generation of EM Waves |
 82%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.
A plane electromagnetic wave is incident on a material surface. The wave delivers momentum \(p\) and energy \(E.\) Then:
| 1. | \(p=0, E \neq0\) |
| 2. | \(p\neq0, E=0\) |
| 3. | \(p\neq0, E \neq0\) |
| 4. | \(p=0, E=0\) |
Subtopic: Â Generation of EM Waves |
 79%
Level 2: 60%+
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- 1(current)
Q. No.
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