Electrons, Wavelength, Frequency, Light

Front

What is the relationship between frequency and wavelength of light?

Back

The frequency (f) and wavelength (λ) of light are inversely related. As frequency increases, wavelength decreases, and vice versa. This relationship is described by the equation: c = f * λ, where c is the speed of light.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.0 x 10^8 meters per second (m/s).

Front

What happens to an electron when it absorbs energy?

Back

When an electron absorbs energy, it moves from a lower energy level (ground state) to a higher energy level (excited state).

Front

What is emitted when an electron returns to its ground state?

Back

When an electron returns to its ground state from an excited state, it emits energy in the form of light or electromagnetic radiation.

Front

Define wavelength in the context of light.

Back

Wavelength is the distance between successive peaks (or troughs) of a wave, typically measured in meters. It determines the color of light.

Front

What is Planck's Constant and its value?

Back

Planck's Constant (h) is a fundamental constant that relates the energy of a photon to its frequency. Its value is approximately 6.63 x 10^-34 Joule seconds (Js).

Front

How does energy relate to frequency and wavelength?

Back

Energy (E) of a photon is directly proportional to its frequency (f) and inversely proportional to its wavelength (λ). The relationship is given by E = h * f and E = (h * c) / λ.

Front

What is the formula to calculate the wavelength of light given its frequency?

Back

The wavelength (λ) can be calculated using the formula: λ = c / f, where c is the speed of light and f is the frequency.

Front

What type of light has the highest frequency?

Back

Gamma rays have the highest frequency in the electromagnetic spectrum.

Front

What type of light has the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.