Question

3. Which of the following statements is incorrect about EM waves?
A. EM waves can transfer energy through a medium and vacuum.
B. EM waves vary in speed, frequency and wavelength.
C. EM waves have electric and magnetic fields.
D. EM waves form when energy is transferred through field.​

Answer 1

Answer:

EM waves form when energy is transferred through field.

Answer 2

D) EM waves form when energy is transferred through the field is incorrect about electromagnetic waves.

• Electromagnetic waves are formed when an electric field and magnetic field come in contact with each other.
• The electric field and magnetic field of an electromagnetic wave are mutually perpendicular to each other.
• Electromagnetic waves transfer energy through any medium or vacuum.
• Electromagnetic waves vary in wavelength and frequency.