EM Spectrum and Light Calcs Review

As electrons ​ (a)   energy, they move to a higher energy level. The electrons ​ ​ (b)   energy when they fall back to their original energy level. ​ ​

• release
• absorb

Reorder the following types of EM radiation from lowest energy to highest energy.

• Radiowaves

• X-ray radiation

• Visible Light

• Ultravioltet Light

• Microwave Radiation

Reorder the following from longest wavelength to shortest wavelength.

• Infrared Waves

• Orange Light

• Violet Light

• Radiowaves

• Ultraviolet Light

Reorder the following from lowest frequency to highest frequency

• Red Light

• Yellow Light

• X-rays

• Microwaves

• Radiowaves

True or False? All Electromagnetic Radiation travels at the speed of light (3.0 x 10¹⁷ nm/s).

• True

• False

Solve this problem using the equation: 
C = λf

C = 3.0 x 10¹⁷ nm/s

If a wave of violet light has a wavelength of 440 nm, what is the frequency (f) of the wave?

• 6.59 x 10^-53 Hz

• 1.46 x 10^-15 Hz

• 1.47 x 10¹⁹ Hz

• 6.82 x 10 ¹⁴ Hz

Calculate the wavelength of light (in nanometers, nm) that has a frequency of 5.2 x 10¹² Hz.

c = 3.0 x 10¹⁷ nm/s

• 58,000 nm

• .0000017 nm

• 580 nm

• 170 nm

• 1.3 x10^-19 J

• 5.1 x 10¹⁴ J

• 1.9 x 10^-15 J

• 2.3 x 10^-52 J

• 4.75 x 10^-7 J

• 4.18 x 10^-19 J

• 6.31 x 10¹⁴ J

• 9.44 x 10^-32 J

• 2.39 x 10^-32 J

• True

• False