Question

What is the frequency of the electromagnetic radiation depicted by the wave in the diagram below?

A) 5 Hz

B) 1.5x1010 Hz

C) 20 Hz

D) 6x1010 Hz



Electromagnetic Wave amplitude 10 15 /20 distance (mm)
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Relation between speed of electromagnetic wave and frequency is given as

c=\lambda (wavelength) \times frequency

wavelength \lambda is define as length of complete wave which can be obtained from the figure shown above as total length of one complete wave which comes out to be 20 mm.

As speed of electromagnetic radiation is c=3 \times 10^8 m/s

Here, wavelength \lambda =20 \times 10^{-3}m

Thus, frequency = Frequency = \frac{c}{\lambda}=\frac{3 \times 10^8}{20 \times 10^{-3}} =1.5\times 10^{10}Hz (Hz = per second)

Answer : B

Add a comment
Know the answer?
Add Answer to:
What is the frequency of the electromagnetic radiation depicted by the wave in the diagram below?...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT