Worksheetsrefraction of light
Total questions: 15
Worksheet time: 9mins
Looking at the diagram, describe the object distance.
u>2f
u=2f
u=f
f<u<2f
In a lens diagram, what does "u" mean?
Object distance
Image distance
Focal Point
Focal Length
What happens to the light rays in a convex lens?
Converge
Diverge
Surge
Reflect
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
Which colour of light travels fastest in any medium except air ?
yellow
red
violet
white
choose the conditions where light does not bend when entering a medium of different optical density,
incident ray is normal to the refracting surface
any obliquely incident ray
angle of incidence is 90°
angle of incidence is 0°
When a ray of light enters from one medium to another having different optical densities it bends. beacuse
of different optical densities
speed of light changes
obstruction of light changes
frequency of light changes
As the ray of light passes from air to glass, state how the wavelength of light changes.
wavelength increases
wavelength decreases
wavelength remains constant
wavelength decreases and then increases
Jyothi puts a pencil into a glass container having water and is surprised to see the pencil bend.Name the phenomenon responsible for the change.
Reflection of light
Refraction of light
total internal reflection of light
partial reflection and partial refraction
Name the subjective property of light related to its wavelength.
refractive index
frequency
colour
velocity
