Wavelengths of the Electromagnetic Spectrum: Practice Quiz

Ten questions pulled at random. Regenerate any time for a fresh set.

1. 1. Visible light spans roughly:

   4000–7000 nm4–7 nm40–70 nm400–700 nm

2. 2. As frequency increases, wavelength:

   DecreasesStays the sameIncreasesDoubles

3. 3. Which order is correct from long to short wavelength?

   Gamma, X-ray, radio, visibleRadio, microwave, infrared, visibleX-ray, infrared, radio, gammaVisible, radio, gamma, UV

4. 4. As wavelength decreases, energy:

   Becomes zeroDecreasesIncreasesStays constant

5. 5. Which has the highest energy per photon?

   RadioUltravioletX-rayGamma

6. 6. Which has the longest wavelength?

   RadioUltravioletGammaX-ray

7. 7. Infrared wavelengths run roughly:

   0.01–10 nm10–400 nm1 mm to 1 m700 nm to 1 mm

8. 8. Planck's constant is:

   6.626 x 10⁻³⁴ J·s1.60 x 10⁻¹⁹ J·s3.00 x 10⁸ J·s6.022 x 10²³ J·s

9. 9. X-ray wavelengths are about:

   1–10 mm400–700 nm0.01–10 nm10–400 nm

10. 10. Which sits between visible light and X-rays?

    InfraredGammaMicrowaveUltraviolet