ONDAS ELETROMAGNÉTICAS AULA 35

What is the propagation medium for electromagnetic waves?

• Only solids

• Only liquids

• Vacuum and materials

• Only gases

What is the main topic of the document?

• Sound waves

• Electromagnetic waves

• Water waves

• Mechanical waves

Who predicted and theorized electromagnetic waves?

• Albert Einstein

• Isaac Newton

• James Clerk Maxwell

• Nikola Tesla

Which equations did Maxwell use to form wave equations?

• Newton's laws

• Einstein's relativity

• Faraday, Ampère, and Gauss equations

• Pythagorean theorem

What generates electromagnetic waves?

• Oscillating electric charges or atomic phenomena

• Static electric charges

• Magnetic fields only

• Gravitational forces

What is the wavelength of red light given in the problem?

• 640 nm

• 740 nm

• 840 nm

• 940 nm

What is the formula to calculate frequency from speed and wavelength?

• f = v/λ

• f = v × λ

• f = λ/v

• f = λ - v

What is the frequency range for radio waves?

• Up to 300 MHz

• 300 GHz to 430 THz

• 430 THz to 790 THz

• Above 30 EH

Which electromagnetic wave has a frequency range from 430 THz to 790 THz?

• Ultraviolet

• X-rays

• Visible light

• Radio waves

What is the symbol for the frequency unit 'Mega'?

• M

• G

• T

• P