K= 37°C+273.15
K= 310.15
Round to the nearest whole number
310K
As per angular momentum conservation we can say

here we know that

we know that




now from above equation



so speed is 4.4 m/s
The only difference between the two is that the frequency of X-rays is very much higher than radio waves. If, on the other hand, the radio waves or X-rays are propagating through a medium other than the vacuum, their speed will generally be less than c and will depend upon the specific properties of the medium.