Light Waves II - SS3 Physics Past Questions and Answers - page 1
1
Which of these is not a property of lenses?
View related lesson
A
Focal length
B
Aperture
C
Refractive index
D
Magnification
2
Aberrations of lenses are________
View related lesson
A
obstructions or obstacles that prevent image from being produced by a lens
B
corrections or improvements in the quality of the image produced by a lens
C
openings or channels by which the image is produced by a lens
D
distortions or imperfections in the image produced by a lens
3
Magnification is the ________
View related lesson
A
The rate at which an object is enlarged by a lens
B
The degree to which an object is enlarged by a lens
C
The speed with which an object is formed by a lens
D
The distance between an object and its image formed by a lens
4
A convex lens is used to
View related lesson
A
Reflect light waves to a focal point
B
Diverge light waves from a focal point
Â
C
Converge light waves at a focal point
D
Diffract light waves from a focal point
5
A concave lens is used to
View related lesson
A
Enlarge light waves
B
Reinforce light waves
C
Focus light waves
D
Diverge light waves
6
What is a lens and how many types are there?
View related lesson
7
What is the importance of lenses and their properties?
View related lesson
8
Which of the following optical instruments is used to magnify small objects?
View related lesson
A
Telescope
Â
B
Microscope
C
Spectroscope
D
Periscope
9
Which part of the eye is responsible for controlling the amount of light that enters the eye?
View related lesson
A
Iris
B
Pupil
C
Lens
D
Retina
10
What type of lens is used to correct farsightedness?
View related lesson
A
Convex lens
B
Concave lens
C
Plano-convex lens
D
Plano-concave lens
Loading lesson…