Wavelength and Frequency Online Drills!

Violet light has a wavelength of 4.10 x 10-12 m. What is the frequency?

• 7.31 × 10^-19 Hz

• 7.31 × 10¹⁹ Hz

Calculate the energy of a photon of radiation with a frequency of 8.5 x 10¹⁴ Hz.

• 5.63 × 10^-19 J

• 5.63 × 10¹⁹ J

What is the wavelength of a microwave with a frequency of 4.2 x 10⁸ Hz?

• .71 m

• .81m

The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 x 10¹⁴ Hz?

• 4 x 10² m

• 4 x 10⁷ m

As red light above enters glass its wavelength changes to 5.8 x 10⁷m, if the frequency of red light is 4 x 10¹⁴m what is the speed of the wave if the speed is not constant?

• 2.32 m/s

• 3 x 10⁸ m/s

An FM radio station broadcasts at a frequency of 107.9 Hz. What is the wavelength of the radio signal?

To type your answer, you may use the format.

__ x 10 ^ (exponent number) + label

example:

3.5 x 10^-5 m

1.2 x 10^11 m

As the wavelength increases, the frequency ______?

If the frequency increases, the wavelength _______?

The wavelength of a diagnostic x-ray is only 0.01 x 10^-9 m. What frequency does the doctor’s machine operate with?

• 3.0×10¹⁹ Hz

• 3.0×10^-19 Hz

If an electron has a velocity of 5.0 x 10⁵ m/s, what is its wavelength in m?

To type your answer, you may use the format.

__ x 10 ^ (exponent number) + label

example:

3.5 x 10^-5 m

1.2 x 10^11 m