Practice Properties Of Electromagnetic Waves (10.3)

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the speed of electromagnetic waves in a vacuum?
Show hintHide hint
Think about how fast light travels.
Question 2.
What is wavelength?
Show hintHide hint
Consider the distance covered by a wave in one cycle.
3Question 3.
What is the speed of electromagnetic waves in a vacuum?
- 3×10^8 m/s
- 1×10^6 m/s
- 5×10^7 m/s
Show hintHide hint
Recall how fast light travels.
4Question 4.
Is the wavelength inversely related to frequency?
- True
- False
Show hintHide hint
Remember the formula connecting these two concepts.
Question 5.
A laser emits light with a wavelength of 500 nm. What is its frequency?
Show hintHide hint
Use the wavelength to find frequency with the speed of light.
Question 6.
Discuss the impact of light speed variations due to different media on communication technologies.
Show hintHide hint
Consider how refraction can affect telecommunications.

5 more questions in this section. Enroll free to practise them all.