It depends, You have to have the length and the width of the crest wave.
The answer is B because what the star is made of can make it's brightness and color different.
Answer:
a)It is NOT possible using this telescope, to see the two stars as separate stars
b)
Explanation:
From the question we are told that:
Diameter of lens,
Distance from both star
Distance between both stars
Wavelength of light
Generally the equation for angle subtended by the two stars at the lens is mathematically given by
Generally the equation for minimum angular separation of two object is mathematically given by
Therefore
It is NOT possible using this telescope, to see the two stars as separate stars
b)
Generally the equation for minimum diameter of the lens is mathematically given by