Light Quantization Calculations

What is the formula to calculate the energy of a photon?

• E = hf

• E = h/c

• E = mv^2

• E = mc^2

What is the value of Planck's constant?

• 6.626 × 10^-36 joule-seconds

• 6.626 × 10^-33 joule-seconds

• 6.626 × 10^-34 joule-seconds

• 6.626 × 10^-35 joule-seconds

According to the quantum theory of light, light is composed of discrete units called?

• photons

• waves

• atoms

• particles

What is the relationship between the energy of a photon and its frequency?

• The energy of a photon is inversely proportional to its frequency.

• The energy of a photon is not related to its frequency.

• The energy of a photon is equal to its frequency.

• The energy of a photon is directly proportional to its frequency.

What is the relationship between the energy of a photon and its wavelength?

• direct

• proportional

• unrelated

• inverse

Calculate the energy of a photon with a frequency of 5.0 x 10^14 Hz.

• 2.5 x 10^-19 J

• 1.0 x 10^-19 J

• 3.313 x 10^-19 J

• 7.5 x 10^-19 J

Calculate the energy of a photon with a wavelength of 500 nm.

• 3.97 x 10^-19 J

• 1.23 x 10^-18 J

• 5.62 x 10^-19 J

• 2.34 x 10^-19 J

Calculate the frequency of an electromagnetic radiation with an energy of 3.0 x 10^-19 J.

• 4.53 x 10^14 Hz

• 1.0 x 10^14 Hz

• 5.0 x 10^14 Hz

• 2.0 x 10^14 Hz

Calculate the wavelength of an electromagnetic radiation with an energy of 4.8 x 10^-20 J.

• 9.6 x 10^-6 m

• 4.14 x 10^-6 m

• 6.4 x 10^-6 m

• 3.2 x 10^-6 m

What is the unit of measurement for frequency?

• hertz

• second

• meter

• kilogram