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Total questions: 20
Worksheet time: 20mins
The black part of eye that allows light inside eye is?
Cornea
Iris
Pupil
Retina
The ray coming from a source is called?
Reflected ray
Incident ray
Normal ray
Principal ray
If light is bouncing back from a surface, those rays are called?
Incident ray
Reflected ray
Normal ray
Principal ray
When you enter a dark room, your pupil will?
Decrease in size
Increase in size
No change
Turns white
They have different eye colors due to?
Retina
Iris
Cornea
Pupil
Our eye is a _______________ lens?
Convex
Concave
Plane
Retina consists of
Rods only
Cones only
Iris and Pupil
Rods and Cones
The phenomena of bending light is?
Reflection
Refraction
Radiation
We can't see our face clearly in moving water due to?
Reflection
Refraction
Radation
Sight error
When light enters from low density to high density medium, it bends
towards the normal line
away from the normal line
moves straight
When light enters from high density to low density medium, it bends
towards the normal line
away from the normal line
moves straight
This is possible due to?
Reflection of mirrors
Refraction of light
Radiation of light
Can we create multiple images using only two mirrors
Yes
No
How many images are formed, if the angle is 10?
26
35
10
infinity
The point of intersection of Incident ray and Reflected ray is
Normal line
Plane
Principal axis
Abnormal line
This distortion in image formed in water is due to?
Reflection
Refraction
Radiation
Inversion
A person is blind if ___________________
Cones are absent in his eyes
Rods are absent in his eyes
Image is formed on blind spot
Image is formed on Retina
Two mirrors can produce infinite images when _______ between them
angle is 90
angle is 180
angle is 360
angle is 0
Formula to find mirror images is?
360/Angle
360/Angle - 1
Angle/360
Angle/360 - 1
If the pupil is enlarged, it means?
Person is in a dark room
Person is in open sunlight
Person is in normal lighting
Person is blind
