Q: What is the relationship between wavelength ($\lambda$) and frequency ($\nu$) in electromagnetic radiation?

$\lambda$ and $\nu$ are inversely proportional

Q: If an X-ray detector picks up radiation with a wavelength of $0.85 \ \mathrm{nm}$, what is the frequency of this radiation? (Speed of light $c = 3.00 \times 10^8 \ \mathrm{m/s}$)

$3.53 \times 10^{17} \ \mathrm{s}^{-1}$

Q: Which of the following correctly ranks the electromagnetic radiation types from lowest to highest energy per photon?

Radio Waves < Infrared < Visible Light < X-Ray < Gamma Ray

Q: A physicist uses the equation $E = h \nu$ to calculate the energy of a photon. If $h = 6.626 \times 10^{-34} \ \mathrm{J \cdot s}$ and $\nu = 5.0 \times 10^{15} \ \mathrm{s}^{-1}$, what is the energy of the photon?

$3.31 \times 10^{-18} \ \mathrm{J}$

Q: Which of the following is a correct statement about the speed of electromagnetic radiation in a vacuum?

It is always $3.00 \times 10^8 \ \mathrm{m/s}$

Q: Which of the following is NOT a property of electromagnetic radiation?

It requires a medium to propagate

Q: A hospital uses X-rays to image bones. Which property of X-rays makes them suitable for this application?

X-rays have high energy and can penetrate tissues

Question 1

Which of the following types of electromagnetic radiation has the shortest wavelength?

Accepted Answer

Gamma Ray

Question 2

A carbon-oxygen double bond within a sugar molecule absorbs electromagnetic radiation at a frequency of $6.0 	imes 10^{13} \ \mathrm{s}^{-1}$. Which portion of the electromagnetic spectrum does this represent?

Accepted Answer

Infrared

Question 3

Which of the following sources of electromagnetic radiation will have the highest energy?

Accepted Answer

Light D (291 nm)

Question 4

What is the relationship between wavelength ($\lambda$) and frequency ($
u$) in electromagnetic radiation?

Accepted Answer

$\lambda$ and $
u$ are inversely proportional

Question 5

Which equation correctly relates the speed of light ($c$), wavelength ($\lambda$), and frequency ($
u$)?

Accepted Answer

$c = \lambda 
u$

Question 6

If an X-ray detector picks up radiation with a wavelength of $0.85 \ \mathrm{nm}$, what is the frequency of this radiation? (Speed of light $c = 3.00 	imes 10^8 \ \mathrm{m/s}$)

Accepted Answer

$3.53 	imes 10^{17} \ \mathrm{s}^{-1}$

Question 7

Which of the following statements about photons is correct?

Accepted Answer

Photons are packets of electromagnetic energy

Question 8

Which type of electromagnetic radiation is most likely to cause ionization in biological tissues?

Accepted Answer

X-Ray

Question 9

Visible light is a small part of the electromagnetic spectrum. Which color of visible light has the shortest wavelength?

Accepted Answer

Violet

Question 10

Which of the following correctly ranks the electromagnetic radiation types from lowest to highest energy per photon?

Accepted Answer

Radio Waves < Infrared < Visible Light < X-Ray < Gamma Ray

Question 11

A physicist uses the equation $E = h 
u$ to calculate the energy of a photon. If $h = 6.626 	imes 10^{-34} \ \mathrm{J \cdot s}$ and $
u = 5.0 	imes 10^{15} \ \mathrm{s}^{-1}$, what is the energy of the photon?

Accepted Answer

$3.31 	imes 10^{-18} \ \mathrm{J}$

Question 12

Which of the following is a correct statement about the speed of electromagnetic radiation in a vacuum?

Accepted Answer

It is always $3.00 	imes 10^8 \ \mathrm{m/s}$

Question 13

Which of the following electromagnetic waves has the lowest frequency?

Accepted Answer

Radio Waves

Question 14

If the wavelength of a light wave is halved, what happens to its frequency?

Accepted Answer

It is doubled

Question 15

Which of the following is NOT a property of electromagnetic radiation?

Accepted Answer

It requires a medium to propagate

Question 16

A hospital uses X-rays to image bones. Which property of X-rays makes them suitable for this application?

Accepted Answer

X-rays have high energy and can penetrate tissues

The Electromagnetic Spectrum and Visible Light

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