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Learning Task 4: MULTIPLE CHOICE: Direction: Choose the letter of the best answer. Writet
1. What is the speed of the electromagnetic wave in a vacuum?
st
only on a separate sheet of paper.
A. Zero
B. Always the same as the speed of light
C. Changing depending on the value of its wavelength
D. None of the above
2. How are electromagnetic waves produced?
A. Any disturbance
B. Currents
C. Vibrating charge
D. Voltage source
3. What happens to the frequency of the electromagnetic wave if its wavelength increa
A. It decreases.
C. It remains the same.
B. It increases as well.
D. None of the above.
4. In the electromagnetic wave, what is the direction of the propagation of the wave?
A. Always to the right
B. Cannot be determined
C. Parallel to electric and magnetic field directions
D. Perpendicular to the electric and magnetic field directions
5. Which of the following forms of electromagnetic waves has the widest frequency
A. X-ray
C. Ultraviolet
B. Microwave
D. Radio waves
6. Who contributed in developing equations that showed the relationship of elect​