EM Spectrum, Frequency, Wavelength, and Energy Flashcard

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the relationship between wavelength and frequency?

Back

As wavelength increases, frequency decreases. This is described by the equation: @@c = u imes ext{wavelength}@@, where c is the speed of light.

Front

Define photon.

Back

A photon is a quantum of electromagnetic radiation, which carries energy proportional to its frequency.

Front

What is the formula to calculate the energy of a photon?

Back

The energy of a photon can be calculated using the formula: @@E = h imes u@@, where E is energy, h is Planck's constant (6.626 x 10^-34 J·s), and ν is frequency.

Front

What type of radiation has the highest energy?

Back

Gamma rays have the highest energy in the electromagnetic spectrum.

Front

What is Planck's constant?

Back

Planck's constant is a fundamental constant used in quantum mechanics, valued at approximately 6.626 x 10^-34 J·s.

Front

How does the energy of a photon change with frequency?

Back

The energy of a photon increases with increasing frequency. Higher frequency means higher energy.

Front

What is the frequency of a photon with a wavelength of 500 nm?

Back

To find the frequency, use the formula: @@ u = rac{c}{ ext{wavelength}}@@. For 500 nm, the frequency is approximately 6.0 x 10^14 Hz.

Front

What type of electromagnetic radiation is used in microwave ovens?

Back

Microwaves are the type of electromagnetic radiation used in microwave ovens.

Front

What is the visible light spectrum range in nanometers?

Back

The visible light spectrum ranges from approximately 400 nm (violet) to 700 nm (red).