Electromagnetic Spectrum & Wavelengths

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low

• high, high

• low, high

• low, low

In order to go from ground state to an excited state, an electron must

• emit energy

• absorb energy

• rotate

• wiggle

The frequency of light is 7.14 x 10¹⁴ Hz. What is the wavelength?

• 3.00 x 10⁸ m

• 4.20 x 10^-7 m

• 2.25 x 10²³ m

• 3.90 x 10^-9 m

The frequency of light is 7.14 x 10¹⁴ Hz. What is the energy?

• 4.73 x 10^-19 J

• 1.20 x 10^-48 J

• 1.13 x 10^-17 J

• 4.97 x 10^-49 J

Calculate the energy of light with a frequency of 5.10 x 10¹⁴ Hz.

• 3.38 x 10^-19 J

• 5.88 x 10^-7 J

• 9.62 x 10¹² J

• 1.04 x 10^-13 J

What is the variable λ used for?

• frequency

• wavelength

• Energy

• speed of light