Reflection of Light

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15 Terms

1

normal line

The ________ at the point of incidence is different for different rays.

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2

Concave mirrors

________ are used in certain types of astronomical telescopes called reflecting telescopes.

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3

Specular Reflection

________: the angle of incidence is equal to the angle of reflection.

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4

individual incident

The reflected light from each ________ ray follows the law of reflection.

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5

Parallel rays of light

________ strike the convex mirror and are reflected outwards.

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6

Angle of incidence

the angle at which light hits a reflecting surface

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7

Angle of reflection

the angle at which light bounces off a reflecting surface

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8

Specular Reflection

the angle of incidence is equal to the angle of reflection

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9

Diffuse reflection of light

results in light rays reflected at many angles, rather than at just one angle as in the case of specular reflection; angle of incidence is not equal to the angle of reflection

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10

Reflection of light on a concave mirror

when parallel light rays hit a concave mirror they reflect inwards towards a focal point

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11

Reflection of light on a convex mirror

when parallel light rays hit a convex mirror they reflect outwards and travel directly away from an imaginary focal point

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12

In diffuse reflection the normal line at the point of incidence

is different for different rays

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13

Water is a

reflective surface.

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14

When the water in a lake or sea is very still,

the reflection of the landscape is perfect, because the reflecting surface is very flat.

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15

If there are ripples or waves in the water,

the reflection becomes distorted.

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