Three complete orders on each side of the m=0 order can be produced in addition to the m=0 order.
The ruling separation is d=1/(470mm-1)
Diffraction lines occurs at an angle θ such that dsin=mλ,when λ is the wavelength and m is an integer.
Notice that for a given order,the line associated with a long wavelength is produced at a greater angle than the line associated with shorter wavelength.
we take λ to be the longest wavelength in the visible spectrum (538nm) and find the greatest integer value of m such that θ is less than 90°.
That is,find the greater integer value of m for which mλ<d.
since,d/λ
There are three complete orders on each side of the m=0 order.
The second and third orders overlap.
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Answer:
Explanation:
Torque due to applied force along its surface is given as
here we know that
r = radius of earth =
Now we have
now we know that
initial angular speed of Earth is
final angular speed will be
so now we have
here we have moment of inertia of Earth is given as
now we have
Answer:
The values of gravitational force and gravitational constant become same or equal when product of masses involved equals the square of distance between them.