1. If a light beam is incident onto a plan mirror and makes an angle of 30 degre
ID: 1449106 • Letter: 1
Question
1. If a light beam is incident onto a plan mirror and makes an angle of 30 degrees with the mirror, what is the angle at which the beam is reflected from the mirror?
2. If a beam is incident normal (perperndicular to the surface) to a plane mirror, what is the angle of relection?
3. Name some tip-offs that your mind recognizes when viewing a reflection that tells it that it truly is a reflection.
4. When a beam of light enters a body of water from the air at an angle through a level surface, does it bend toward or away from the normal line in the water?
5. Name some tip-offs that your mind recognizes when viewing a refracted image that tells it that it truly is a refraction.
Explanation / Answer
1)
from law of reflection , the reflected angle is equal incident angle is
2)
the angle of reflection is normal to the surface
the angle = 0 degrees
3)
the images seen in the mirror
4)
when the light enters from rarer(air) to denser (water) medium
the light ray bend towards the normal
5)
a pencil submerged in a glass half-filled with water,
the image of the pencil appears to be broken
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