This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Physics 10 Chapter 3 - Geometrical Optics - 25
1.
What is the coloured portion of human eye called?
a) Iris
b) Cornea
c) Retina
d) Pupil
2.
What is the part of human eye that controls the amount of light reaching the retina?
a) Retina
b) Iris
c) Cornea
d) Pupil
3.
What is the opening at the centre of iris called?
a) Film
b) Pupil
c) Retina
d) Cornea
4.
Which of the following statement is true about pupil?
a) Pupil contracts in bright light
b) Pupil is enlarged in bright light
c) Pupil contracts in dim light
d) Pupil has no effect in dim light
5.
Which of the following statement is true about pupil?
a) Pupil is enlarged in dim light
b) Pupil contracts in dim light
c) Pupil has no effect in dim light
d) Pupil is enlarged in bright light
6.
Which type of image is produced by the converging lens of human eye if it views a distant object?
a) Real, erect, same size
b) Real, inverted, diminished
c) Virtual, erect, diminished
d) Virtual, inverted, magnified
7.
Which muscles control the focal length of lens?
a) Suspensory ligaments
b) Ciliary muscles
c) Nervous muscles
d) Amylase muscles
8.
Which muscles allow objects at various distances to be seen?
a) Amylase muscles
b) Nervous muscles
c) Suspensory ligaments
d) Ciliary muscles
9.
If the object is far away from the eye, which of the following statement is correct about accommodation?
a) Curvature of lens is increased
b) Ciliary muscles contract
c) The deviation of light from the lens must be less
d) Focal length is decreased
10.
If the object is far away from the eye, which of the following statement is correct about accommodation?
a) The deviation of light from the lens must be more
b) Curvature of lens is increased
c) Ciliary muscles relax
d) Focal length is decreased
11.
If the object is far away from the eye, which of the following statement is correct about accommodation?
a) The deviation of light from the lens must be more
b) Curvature of lens is decreased
c) Focal length is decreased
d) Ciliary muscles contract
12.
If the object is far away from the eye, which of the following statement is correct about accommodation?
a) Ciliary muscles contract
b) Curvature of lens is increased
c) The deviation of light from the lens must be more
d) Focal length is increased
13.
If the object is close to the eye, which of the following statement is correct about accommodation?
a) Focal length is increased
b) The deviation of light from the lens must be more
c) Ciliary muscles relax
d) Curvature of lens is decreased
14.
If the object is close to the eye, which of the following statement is correct about accommodation?
a) The deviation of light from the lens must be less
b) Curvature of lens is decreased
c) Ciliary muscles contract
d) Focal length is increased
15.
Which part of human eye controls the size of pupil?
a) Iris
b) Retina
c) Lens
d) Cornea
This is more feedback!
This is the feedback!
