An Astronomer who made a list of 100 nebulae and galaxies that could
be mistaken for comets was Charles Messer's.
Charles Messier's was a very famous scientist in the field of Astronomy.
His research in appearance of Great comet filled spark to his passion
of Astronomy. On January 21, 1759 he put his thought of wrong
calculation of Delisle's and he described a faint glow resembling comet
had been seen earlier. Then after, he discovered great comet near
sword of Orion.
There are various tales of Charles Messiers which put him forward
towards his love of Astronomy.
Learn more about comet and Nebulae here:
brainly.com/question/21420531
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Answer:
The distance between their eye and the ceiling is 33.06 m.
Explanation:
Given that,
The ceiling of a large symphony hall is covered with acoustic tiles which have small holes that are 4.35 mm center to center, D = 4.35 mm
Diameter of the eye of pupil, d = 5.1 mm
Wavelength, 
We need to find the distance between their eye and the ceiling. Using Rayleigh criteria, we get the distance as follows :
So, the distance between their eye and the ceiling is 33.06 m.
A = Delta v/Delta t
Delta v = 25 - 0 = 25
Delta t = 30
25/30 = 5/6 = 1.66 repeating
