Which of the following electromagnetic waves has the shortest wavelength?

a. visible light waves

b. ultraviolet waves

c. microwaves

d. infrared waves

B.ultraviolet waves

Explanation:

The wavelength of visible light waves ranges from 400 – 700 nanometres i.e.,  4.00 × 10⁻⁷ to 7.00 × 10⁻⁷ m

The wavelength of ultraviolet waves ranges from 10 nm to 400 nm i.e., 0.1 × 10⁻⁷ to 4.00 × 10⁻⁷ m

The wavelength of microwaves ranges from 0.3 m and 3 mm i.e., 0.3 m to 3×10⁻³ m.

The wavelength of infrared waves ranges from 700 - 1050 nanometers i.e., 7.00 × 10⁻⁷ m to 10.5 × 10⁻⁷ m.

It can be seen that the wavelength of ultraviolet light is the shortest.

d is the correct answer