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Out of the following options which one can be used to produce a propagating electromagnetic wave ?

(A)

An accelerating charge

(B)

A charge moving at constant velocity

(C)

A stationary charge

(D)

A chargeless particle

NEET - Medical UG-2016 Easy

Answer & Solution:

To produce electromagnetic wave, charge has to be accelerated 

So, charge with constant velocity cannot produce electromagnetic wave. 

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Other Questions of the same topic

Q1:

Amplitude modulation has

(A)

one carrier

(B)

one carrier with high frequency

(C)

one carrier with two side band frequencies

(D)

one carrier with infinite frequencies

K-CET-2015 Easy

Q2:

The waves used for line-of-sight (LOS) communication is

(A)

space waves

(B)

sky waves

(C)

ground waves

(D)

sound waves

K-CET-2015 Easy

Q3:

The input signal given to a CE amplifier having a voltage gain of 150 is \(\large V_{i}=2 cos\left ( 15t+\frac{\pi}{3} \right )\) .The corresponding output signal will be -

(A)

\(\large 300 cos\left ( 15t+\frac{4\pi}{3} \right )\)

(B)

\(\large 300 cos\left ( 15t+\frac{\pi}{3} \right )\)

(C)

\(\large 75 cos\left ( 15t+\frac{2\pi}{3} \right )\)

(D)

\(\large 2 cos\left ( 15t+\frac{5\pi}{3} \right )\)

NEET - Medical UG-2015 Medium

Biology Chemistry

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