Free Printable Refraction

1.

As light enters these materials it...

a)

continues its straight line path

b)

bends toward the normal

c)

bends away from the normal

d)

reflects

2.

The refractive index of any medium is always

a)

< 1

b)

> 1

c)

= 1

d)

= 0

3.

Refractive index

a)

$n=cv$

b)

$n=\frac{v}{c}$

c)

$n=\frac{c}{v}$

d)

$v=nc$

4.

An incident ray moving from air
( $n=1.000$ ) into glass ( $n=1.532$ )
has an incident angle of $30\degree$ .
What is the angle of refraction?

a)

$39.7\degree$

b)

$19.2\degree$

c)

$59.1\degree$

d)

$12.3\degree$

5.

Light travels through a liquid at $2.25\times10^8ms^{-1}$ .
What is the refractive index of the liquid?

a)

$1.33$

b)

$1.00$

c)

$1.52$

d)

$2.45$

6.

What is the index of refraction
of a refractive liquid if the
angle of incidence in air is $35\degree$ and
the angle of refraction is $14\degree$ ?

a)

$1.33$

b)

$2.21$

c)

$2.37$

d)

$1.72$

7.

An incidence ray in air ( $n=1.00$ ) has an angle of incidence of $30\degree$ as
it enters water ( $n=1.33$ ).
What is the angle of refraction?

a)

$15\degree$

b)

$22\degree$

c)

$43\degree$

d)

$17\degree$

8.

Light has the lowest velocity in which medium?

flint glass: $n=1.70$
barium glass: $n=1.60$
crown glass: $n=1.523$
water: $n=1.33$
diamond: $n=2.45$

a)

diamond

b)

water

c)

flint glass

d)

barium glass

e)

crown glass

9.

A student placed a pencil in a cup of water. The pencil appears broken because light...

a)

always travels in a straight line

b)

bends when it passes through water

c)

makes the water in the glass evaporate

d)

reflects the pencil on the water's surface

10.

a)

Refraction, then reflection, and finally refraction

b)

Reflection, then reflection, and finally refraction

c)

Refraction, then reflection, and finally reflection

d)

Reflection, then refraction, and finally reflection

11.

Which colour of light is refracted through the greatest angle during dispersion by a prism?

a)

red

b)

orange

c)

yellow

d)

green

e)

blue

12.

The velocity of light in a vacuum.

a)

$3\times10^8ms^{-1}$

b)

$3\times10^{12}ms^{-1}$

c)

$3\times10^6ms^{-1}$

d)

$3\times10^{10}ms^{-1}$

13.

How does light energy move?

a)

longitudinal waves

b)

wavelengths

c)

transverse waves

d)

ocean waves

e)

simple harmonic waves

14.

a)

A = angle of incidence

b)

A = reflection ray

c)

A = incidence ray

d)

A = refraction ray

e)

A = normal line

15.

A ray of light travels in glass with an index of refraction of $n=1.50$ .
What is the speed of light in the glass?

a)

$2\times10^8ms^{-1}$

b)

$1.5\times10^8ms^{-1}$

c)

$3\times10^8ms^{-1}$

d)

$4.5\times10^8ms^{-1}$

16.

A ray of light travels in glass with an index of refraction of $n=1.50$ .
The light then hits a glass-air interface. If the angle of incidence is $42\degree$ , what is the angle of refraction?

a)

There is no refraction.
Total internal reflection occurs

b)

$42\degree$

c)

$90\degree$

d)

$138\degree$

17.

Where is light travelling fastest?

a)

Inside the box

b)

Outside the box

c)

Both

18.

Light has the highest velocity in which medium?

flint glass: $n=1.70$
barium glass: $n=1.60$
crown glass: $n=1.523$
water: $n=1.33$
diamond: $n=2.45$

a)

diamond

b)

water

c)

flint glass

d)

barium glass

e)

crown glass

19.

a)

B = angle of incidence

b)

B = reflection ray

c)

B = angle of refraction

d)

B = refraction ray

e)

B = normal line

20.

a)

C = angle of incidence

b)

C = reflection ray

c)

C = angle of refraction

d)

C = refraction ray

e)

C = angle of reflection

21.

a)

D = angle of incidence

b)

D = reflection ray

c)

D = incidence ray

d)

D = refraction ray

e)

D = angle of reflection

22.

a)

E = angle of incidence

b)

E = reflection ray

c)

E = incidence ray

d)

E = refraction ray

e)

E = angle of reflection

23.

a)

F = angle of incidence

b)

F = reflection ray

c)

F = incidence ray

d)

F = refraction ray

e)

F = angle of reflection

24.

a)

G = angle of incidence

b)

G = reflection ray

c)

G = incidence ray

d)

G = refraction ray

e)

G = angle of reflection

Refraction

Total questions: 24

Worksheet time: 19mins

Similar Resources on Wayground