Photons
About the Lecture
The lecture Photons by Jared Rovny, PhD is from the course Light: Electromagnetic Radiation.
Included Quiz Questions
If the wavelength of a photon is doubled, how does its energy change?
- It halves
- It doubles
- It quarters
- It quadruples
- It remains the same
Which of the following is NOT true about photons?
- Light only shows particle like behavior and the particles that light is made of are called photons.
- For each frequency, light comes in discrete packets of energy called photons.
- Larger wavelength photons have less energy compared to smaller wavelength photons.
- Blue light photons have higher energy than red light photons.
- Gamma ray photons have more energy than X-ray photons.
How much energy does a single photon have if its frequency is 100 THz?
- 6.6 × 10⁻²⁰ J
- 6.6 × 10⁻¹⁸ J
- 6.6 × 10⁻¹⁶ J
- 6.6 × 10²⁰ J
- 6.6 × 10⁻²⁴ J
Which of the following is an accurate equation for a photon’s energy?
- E = 2 π ℏ c/λ
- E = 2 π ℏ c λ
- E = 2 π c/λ
- E = ℏ c/λ
- E = ℏ f
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Author of lecture Photons
Jared Rovny, PhD
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