centripetal acceleration is given by formula

given that


now we have




so the ratationa frequency is given by




Answer: 31.33 degrees
Explanation:
The diffraction angles
when we have a slit divided into
parts are obtained by the following equation:
(1)
Where:
is the width of the slit
is the wavelength of the light
is an integer different from zero.
Now, the first-order diffraction angle is given when
, hence equation (1) becomes:
(2)
Now we have to find the value of
:
(3)
We know:

In addition we are told the diffraction grating has 5000 slits per mm, this means:

Substituting the known values in (3):


<u>Finally:</u>
>>>This is the first-order diffraction angle
People are resistant to change, People have political freedom, Farmers institute new farming techniques and there is little need for medical facilities.
Answer: A. Two waves have a displacement in opposite directions
Explanation: