Question

If a wave has a wavelength of 0.1 nanometer, it must be a(n)

gamma ray
microwave
radio wave
x-ray

Answer 1

0.1 nanometer = 0.1 * 10^-9 meter = 10^-10 meter

Which you can see it's X-ray.

Glad to help you friend, not sure if you remember me or not :)

Answer 2

Option D, x-ray

Step-by-step explanation:

As visible from the image provided, the wavelength of the given waves are as follows -

gamma ray -
`10^(-12)` meter

microwave -
`10^(-2)` meter

radio wave -
`10^(3)` meter

x-ray -
`10^(-10)` meter

The wavelength of the wave mentioned in the question is 0.1 nanometer which is equal to

`0.1 * 10^(-9)\\= 1 * 10^(-10)\\= 10^(-10)\\` meter

This wavelength range is equal to the wavelength of the X-Ray. Hence, the correct answer is option D