Required Practical: Reflection And Refraction

Question 1

Equipment

Answer 1

Ray box
Lens
Slit
Paper with a straight line on it

Question 2

Step 1

Answer 2

Take a3 paper and draw straight line down centre

Question 3

Step 2

Answer 3

Use protractor to draw right angles = normal

Question 4

Step 3

Answer 4

Place glass block against the first line so normal is near centre of the block

Question 5

Step 4

Answer 5

Turn off all lights
Draw outlines around the box

Question 6

Step 5

Answer 6

Turn on ray box so light hits the block at the normal
= incident ray casting angle of incidence

Question 7

Stage 6

Answer 7

See line leaving the block
= transmitted ray
Mark all of these lines, reflected, transmitted, incidence

Question 8

Step 7

Answer 8

Then on lights
Remove the glass block
Draw in these reflected rays from our markings
And draw the path of these rays

Question 9

Step 8

Answer 9

Measure angle of incidence and reflection
Measure angle of refraction = angle between normal and refracted ray

Question 10

Stage 9

Answer 10

Do everything against with different material

Question 11

Results

Answer 11

Angle of incidence and reflection are the same no matter material
Bacause ni matter the material they are the same
But they are different for different materials