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Emission Spectrum Lab Academic

Last updated about 2 hours ago

7 questions

Required

6

Required

5

Required

3

2

2

2

3

Question 1

1.

Other than visible light, name at least 3 other types of Electromagnetic radiation and an important fact about each.

Question 2

2.

Draw two waves of electromagnetic radiation. Please make your waves two different colors.
Make the first wave have a long wavelength and a low frequency.
Draw the second wave with a short wavelength and a high frequency.
LABEL which wave is which frequency (which is high and which is low).
LABEL the Crest, Trough and Amplitude on one of the waves.

Question 3

3.

In question #2, what color of visible light would likely be the first wave you drew?
Which color would likely be the second wave you drew?
Why?

Question 4

4.

A red light on a traffic light has a wavelength of 700. nm (1 m = 109nm).
Calculate the frequency of the electromagnetic radiation wave of red light in Hertz.
Calculate the energy of the red wave of light in Joules.

Don't forget units and sig figs! List frequency first, then energy. Separate everything with a semicolon " ; "

Question 5

5.

Some night vision goggles have a wavelength of about 900 nm. Calculate the frequency and energy of the infrared electromagnetic radiation used in night vision goggles.

Don't forget units and sig figs! List frequency first, then energy. Separate everything with a semicolon " ; "

Question 6

6.

There are three wavelengths of Ultraviolet light (UV light):

UVA (315-400 nm) – UVA has the longest wavelength as compared to the other types of UV and contributes to a number of health issues such as sunburn, skin aging, eye damage, skin cancer, and suppression of the immune system.

UVB (280-325 nm) – UVB is intermediate in wavelength and is involved in sunburn, snow blindness, immune system suppression, skin cancer, and premature aging.

UVC (180-280 nm) – UVC has the shortest wavelength and is frequently used in germicidal lamps to destroy bacteria and other organisms. It is harmful to the skin because it damages nucleic acid in cells.

UV light is used in tanning salons.

Calculate the frequency and energy of UV light with a wavelength of 300. nm.

Don't forget units and sig figs! List frequency first, then energy. Separate everything with a semicolon " ; "

Question 7

7.

Compare your answers from questions 5 and 6. Which form of electromagnetic radiation (UV light or Infrared) is more dangerous? Why? In your explanation give an example.