Answer:
1. c(m)=7
2. c(M)=420
Step-by-step explanation:
Here u go, u replace x by the number
Answer:

Step-by-step explanation:
Given that,
The frequency of x-rays, 
We need to find the wavelength for x-rays. The relation between wavelength, frequency and speed of light is given by :

So, the wavelength for x-rays is
.
Answer: = 
Step-by-step explanation:


