Energy of Light Calculations Quizizz

Front

Calculate the energy of a photon with a frequency of 9.5 x 10^15 Hz in the UV spectrum.

Back

Use the formula E = h * f to find the energy, where h is Planck's constant (6.626 x 10^-34 Js) and f is the frequency. For the given frequency, E = 6.626 x 10^-34 Js * 9.5 x 10^15 Hz.

Front

What is the wavelength of light that has an energy of 3.67 x 10^-19 J per photon?

Back

The wavelength can be calculated using the formula λ = c / f, where c is the speed of light (3.00 x 10^8 m/s) and f is the frequency. First, find the frequency using f = E / h, where E is the energy and h is Planck's constant (6.626 x 10^-34 Js). Then, calculate the wavelength.

Front

What is the frequency of light with a wavelength of 500 nm?

Back

To find the frequency, use the formula f = c / λ, where c is the speed of light (3.00 x 10^8 m/s) and λ is the wavelength in meters. Convert 500 nm to meters by multiplying by 10^-9.

Front

Determine the energy of a photon with a wavelength of 400 nm.

Back

First, find the frequency using f = c / λ, where c is the speed of light and λ is the wavelength. Then, use E = h * f to find the energy, where h is Planck's constant (6.626 x 10^-34 Js).

Front

How does the energy of a photon change if its frequency is doubled?

Back

The energy of a photon is directly proportional to its frequency, as given by E = h * f. If the frequency is doubled, the energy will also double.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.00 x 10^8 meters per second (m/s).

Front

Explain the relationship between wavelength and frequency in the electromagnetic spectrum.

Back

The wavelength and frequency of electromagnetic waves are inversely proportional, as described by the equation c = λ * f, where c is the speed of light, λ is the wavelength, and f is the frequency.

Front

What happens to the wavelength of light if its energy is halved?

Back

If the energy of light is halved, its frequency is also halved (since E = h * f). Consequently, the wavelength will double, as wavelength and frequency are inversely related (λ = c / f).