Wavelengths, Frequency and Energy

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa. This relationship is described by the equation: c = λν, where c is the speed of light, λ is the wavelength, and ν is the frequency.

Front

What is the formula to calculate the frequency of electromagnetic radiation?

Back

The frequency (ν) can be calculated using the formula: ν = c / λ, where c is the speed of light (approximately 3.00 x 10^8 m/s) and λ is the wavelength in meters.

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

What is the unit of frequency?

Back

The unit of frequency is Hertz (Hz), which is equivalent to one cycle per second.

Front

What type of light can be detected by the human eye?

Back

Visible light is the only type of electromagnetic wave that can be detected by the human eye.

Front

How does energy relate to frequency in electromagnetic waves?

Back

The energy (E) of electromagnetic waves is directly proportional to their frequency (ν), described by the equation: E = hν, where h is Planck's constant (6.626 x 10^-34 J·s).

Front

What is Planck's constant?

Back

Planck's constant (h) is a fundamental constant used in quantum mechanics, valued at approximately 6.626 x 10^-34 Joule seconds (J·s).

Front

Which electromagnetic wave has the highest energy?

Back

Gamma rays have the highest energy among electromagnetic waves due to their high frequency and short wavelength.

Front

What is the wavelength of light emitted by an argon ion laser?

Back

The wavelength of light emitted by an argon ion laser is 488 nm (nanometers).

Front

How do you convert nanometers to meters?

Back

To convert nanometers to meters, multiply the value in nanometers by 1 x 10^-9.