Light, Frequency, Wavelength, Energy and Color 21-22

A photon of visible light has an energy of 3.6 x 10^-19 J. What color is this light? (Hint: calculate the wavelength of this light)

• red

• violet

• yellow

• green

• blue

Tags

NGSS.HS-PS4-1

Waves with higher frequency have _________ wavelengths.

• varying

• longer

• the same

• shorter

Tags

NGSS.HS-PS4-1

If an AM radio station broadcasts at

9.95 x 10⁸ kHz, what is the wavelength of this radiation?

• 6.59 x 10^-28 m

• 1.01 x 10^-6 m

• 3.32 x 10^-3 m

• 302 m

Tags

NGSS.HS-PS4-1

The distance between two peaks (or crests) of a wave is called ____.

• frequency

• amplitude

• wavelength

• hertz

Tags

NGSS.HS-PS4-1

An argon ion laser (shown) emits light at 488 nm. What is the frequency of this radiation?

• 4.07 x 10^-19 Hz

• 6.15 x 10¹⁴ Hz

• 1.46 x 10² Hz

• 2.05 x 10⁶ Hz

Tags

NGSS.HS-PS4-1

Which waves in the electromagnetic (EM) spectrum are the most energetic?

• microwave

• infrared

• ultraviolet

• x-ray

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

Which wave has a greater frequency?

• A

• B

Tags

NGSS.HS-PS4-1

_____________________light is the only type of electromagnetic (EM) light detected by the human eye.

• Red

• Gamma

• Microwave

• Visible

Tags

NGSS.HS-PS4-4

A microwave oven emits radiation at a wavelength of 5 x 10^-6 m. What is the frequency of this radiation?

• 6.67 x 10^-7 Hz

• 2.00 x 10² Hz

• 1.50 x 10⁶ Hz

• 6.00 x 10¹³ Hz

Tags

NGSS.HS-PS4-1

A common infrared laser operates at a wavelength of 1.06 x 10³ nm. What if the energy of a photon of this light?

• 7.02 x 10^-40 J

• 6.25 x 10^-28 J

• 3.54 x 10^-15 J

• 1.87 x 10^-19 J

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3