Images

Images

Images

Images

Images

Images

eyes

point source

mirror

Images

Images

Images

Images

ImagesBra

in: “I se

e a

light b

eyond

the mirro

r!”

ImagesBra

in: “I se

e a

light b

eyond

the mirro

r!”

Images

Plane Mirror makes a “Virtual Image”

Brain: “

I see a

light b

eyond

the mirro

r!”

Images

Plane Mirror makes a “Virtual Image”

Brain: “

I see a

light b

eyond

the mirro

r!”

Images

Plane Mirror makes a “Virtual Image”

Brain: “

I see a

light b

eyond

the mirro

r!”

Images

Plane Mirror makes a “Virtual Image”

Brain: “

I see a

light b

eyond

the mirro

r!”

Images

Plane Mirror makes a “Virtual Image”

Brain: “

I see a

light b

eyond

the mirro

r!”

“Me too”

Apparent Depth

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

air

water

Apparent Depth

θair air

water

Apparent Depth

θair

θair

air

water

Apparent Depth

θair

θwater

θair

air

water

Apparent Depth

θair

θwater

θwater

θair

air

water

Apparent Depth

θair

θwatersin(θair)= nwater sin(θwater)

θwater

θair

air

water

Apparent Depth

θair

θwater

d

sin(θair)= nwater sin(θwater)

θwater

θair

air

water

Apparent Depth

θair

θwater

d

depth of object = d/tan(θwater)

sin(θair)= nwater sin(θwater)

θwater

θair

air

water

Apparent Depth

θair

θwater

d

depth of object = d/tan(θwater)

depth of image = d/tan(θair)

sin(θair)= nwater sin(θwater)

θwater

θair

air

water

Apparent Depth

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

water

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

depth of object θairdepth of image θwater=

water

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

depth of object θairdepth of image θwater=

depth of object 1depth of image nwater=

water

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

depth of object θairdepth of image θwater=

depth of object 1depth of image nwater=

For example if the object is 1 m deep, nwater=1.33,

the image is 0.75 m deep.

water

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

depth of object θairdepth of image θwater=

depth of object 1depth of image nwater=

For example if the object is 1 m deep, nwater=1.33,

the image is 0.75 m deep.

waternwater=1.33

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

depth of object θairdepth of image θwater=

depth of object 1depth of image nwater=

For example if the object is 1 m deep, nwater=1.33,

the image is 0.75 m deep.

waternwater=1.33

1.00 m

Apparent Depth

airθair

θwater

d

depth of object = d/θwater

depth of image = d/θair

θair= nwater θwater

θwater

θair

small angles:(angles in radians)

depth of object θairdepth of image θwater=

depth of object 1depth of image nwater=

For example if the object is 1 m deep, nwater=1.33,

the image is 0.75 m deep.

waternwater=1.33

0.75 m

1.00 m