Answer:
1. Whenever we look into a mirror, or squint at sunlight glinting from a lake, we are seeing a reflection. When you look at this page, too, you are seeing light reflected from it. Large telescopes use reflection to form an image of stars and other astronomical objects.
2. The law of reflection is illustrated in, which also shows how the angles are measured relative to the perpendicular to the surface at the point where the light ray strikes. The law of reflection is very simple: The angle of reflection equals the angle of incidence. When we see our reflection in a mirror, it appears that our image is actually behind the mirror — we see the light coming from a direction determined by the law of reflection. The angles are such that our image appears exactly the same distance behind the mirror as we stand away from the mirror.
3. however the brightness of a star depends on it's composition and how far it is from the planet astronomers define star brightness in terms of apparent magnitude how bright the star appears from earth and absolute magnitude how bright the star appears at a standard distance of 32.6 light years or 10 persecs
Explanation:
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