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

True or False: Electromagnetic waves can travel through a vacuum.

Back

True

Front

What is frequency in the context of waves?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

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

Back

E = hv, where E is energy, h is Planck's constant (6.626 x 10^-34 J·s), and v is frequency.

Front

What happens to frequency as wavelength increases?

Back

As wavelength increases, frequency decreases.

Front

What is the relationship between intensity and photoelectron emission?

Back

The only way to increase the number of photoelectrons emitted is by increasing the intensity of the light.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, usually measured in meters.

Front

What type of electromagnetic radiation has the highest frequency?

Back

Gamma rays have the highest frequency in the electromagnetic spectrum.

Front

What type of electromagnetic radiation can be felt as heat?

Back

Infrared radiation can be felt as heat.

Front

What is the visible spectrum?

Back

The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye, typically ranging from about 400 nm (violet) to 700 nm (red).