A laser beam has a wavelength of 6xx10^(-7)m and aperture of 6xx10^(-2)m. The beam is sent towards the moon which is at a distance of 4xx10^(8)m from the earth. Calculate (i) angular spread of the beam and (ii) the arel spread when it reaches the moon.

A laser beam has a wavelength of 6xx10^(-7)m and aperture of 6xx10^(-2

1.	A laser beam has a wavelength of 6xx10^(-7)m and aperture of 6xx10^(-2)m. The beam is sent towards the moon which is at a distance of 4xx10^(8)m from the earth. Calculate (i) angular spread of the beam and (ii) the arel spread when it reaches the moon.
Answer» ANSWER :(i)`1.22xx10^(-5)RAD(II) 2.381xx10^(7)`m

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A laser beam has a wavelength of 6xx10^(-7)m and aperture of 6xx10^(-2)m. The beam is sent towards the moon which is at a distance of 4xx10^(8)m from the earth. Calculate (i) angular spread of the beam and (ii) the arel spread when it reaches the moon.

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