Photon Energy and Wavelength Calculations

The video tutorial explains how to convert the energy of a photon into its corresponding wavelength, a common question in the study of the photoelectric effect. It details the calculation process using Planck's constant and the speed of light, and demonstrates how to perform the calculation to find the maximum wavelength. The tutorial also covers converting the result into nanometers for practical use.

What is the primary topic discussed in the introduction of the video?

• The speed of light in different mediums

• The history of Planck's constant

• The photoelectric effect and photon energy conversion

• The process of converting wavelength to energy

Which formula is used to calculate the maximum wavelength of a photon?

• E = mc^2

• E = h * f

• λ = (h * c) / E

• λ = h / p

What constants are used in the formula to calculate the wavelength?

• Planck's constant and speed of light

• Coulomb's constant and permittivity of free space

• Gravitational constant and speed of light

• Boltzmann constant and Avogadro's number

What is the value of Planck's constant used in the calculation?

• 6.626 * 10^-34 J·s

• 1.602 * 10^-19 C

• 3.0 * 10^8 m/s

• 9.81 m/s^2

What is the speed of light value used in the wavelength calculation?

• 3.0 * 10^8 m/s

• 2.998 * 10^8 m/s

• 3.5 * 10^8 m/s

• 1.5 * 10^8 m/s

How is the calculated wavelength converted from meters to nanometers?

• By subtracting 10^9

• By dividing by 10^9

• By adding 10^9

• By multiplying by 10^9

What is the final wavelength of light in nanometers after conversion?

• 7.65 nm

• 76.5 nm

• 765 nm

• 0.765 nm

What should be ensured when using the formula for wavelength calculation?

• The wavelength is in centimeters

• The energy is in kilojoules

• The speed of light is squared

• The units of energy and wavelength match

What is the main takeaway from the final remarks of the video?

• The applications of photon energy in technology

• The importance of memorizing constants

• The need for unit consistency in calculations

• The history of the photoelectric effect