Reflection

Question 1

What are the 3 things that can happen when waves meet at a boundary between 2 different materials

Answer 1

Absorbed
Transmitted
Reflected

Question 2

Absorbed

Answer 2

Transfers energy to materials energy store

Question 3

Transmitted

Answer 3

Carry on traveling through new material often leading to refraction

Question 4

Reflected

Answer 4

What actually happens depends on wavelength and property of materials involved

Question 5

Equation fir angle of incidence

Answer 5

Angle of insistence = angle of reflection

Question 6

Angle of insidense

Answer 6

Angle between incoming wave and the normal

Question 7

Angle of reflection

Answer 7

Angle between reflected wave and normal

Question 8

Normal

Answer 8

Imaginary line perpendicular to the surface of the point of insidense (wave hits boundary )

Question 9

What is the normal shown as ?

Answer 9

Dotted line

Question 10

Specular reflection

Answer 10

When a wave is reflected in a single direction by a smooth surface
E.g. Light of a mirror

Question 11

Diffuse reflection

Answer 11

Waves are reflected by a rough surface and reflected rays are scattered in different directions

Question 12

Why does diffuse reflection occur

Answer 12

Normal is different for each incoming ray

Meaning angle of incidence Is different for each rat

Question 13

What happens when light is reflected by a rough surface

Answer 13

Surface appears matte and you get a clear reflection