EM Waves

He was the one who formulated a complete mathematical description of electromagnetism based on field equations.

• Alessandro Volta

• Michael Faraday

• James Clerk Maxwell

• Andrei Marie Ampere

He discovered that a changing magnetic field produces electric field.

• Michael Faraday

• Guglielmo Marconi

• Andrei Marie Ampere

• Alessandro Volta

He experimentally verified Maxwell’s predictions with the production and detection of radio waves.

• Hans Christian Oersted

• Guglielmo Marconi

• Andrei Marie Ampere

• Heinrich Hertz

Accelerating electrons may produce electromagnetic waves. These electromagnetic waves are combination of both

• magnetic field and reverse field

• electric field and ground field

• magnetic field and ground field

• electric field and magnetic field

Electromagnetic waves can travel in a vacuum with a velocity of __________.

• 1.0 x 10⁸ m/s

• 1.0 x 10⁵ m/s

• 3.0 x 10⁸ m/s

• 3.0 x 10⁵ m/s

An electromagnetic wave can travel with or without a medium.

• True

• False

An electromagnetic wave can travel in a vacuum.

• True

• False

How does an electric field and magnetic field oscillate with each other?

• Perpendicular with each other.

• Parallel with each other.

• Align with each other.

• Back and forth with each other.

Based on the illustration electromagnetic wave is also a ________.

• longitudinal wave

• transverse wave

• moving wave

• propagating wave

EM waves can be related in this equation, c = fλ . What is c in the equation?

• speed of frequency

• speed of molecules

• speed of light

• speed of particles