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Physics 10 Chapter 3 - Geometrical Optics - 18
1.
Which type of image is formed by a convex lens on a screen?
a) Inverted and virtual
b) Inverted and real
c) Upright and virtual
d) Upright and real
2.
What is the relationship between object and image distance in terms of focal length of the lens called?
a) Graphical method for image location
b) Lens formula for image location
c) Mathematical formula for image location
d) Ray diagram method for image location
3.
Write down the lens formula?
a) Lens formula: 1/ƒ = (1/p) - (1/q)
b) Lens formula: 1/ƒ = (p/1) + (q/1)
c) Lens formula: 1/ƒ = (p/1) - (q/1)
d) Lens formula: 1/ƒ = (1/p) + (1/q)
4.
Which of the following is true for converging lens?
a) Focal length is positive
b) Object distance is negative
c) Focal length is negative
d) Image distance is negative
5.
What is the study of light behaviour called?
a) Geophysics
b) Astronomy
c) Optics
d) Electrostatics
6.
Which of the following is true for diverging lens?
a) Focal length is negative
b) Focal length is positive
c) Object distance is negative
d) Image distance is negative
7.
What is the branch of optics called that focuses on the formation of images?
a) Astronomy
b) Geometrical optics
c) Geophysics
d) Electrostatics
8.
Which of the following is true for converging lens?
a) Object distance is negative
b) Object distance is positive
c) Focal length is negative
d) Image distance is negative
9.
Which of the following is true for diverging lens?
a) Object distance is negative
b) Object distance is positive
c) Focal length is positive
d) Image distance is negative
10.
What is the simplest camera?
a) Camera with two lens
b) Camera with one lens
c) Pinhole camera
d) Nib hole camera
11.
Which of the following is true for converging lens?
a) Image distance is negative
b) Object distance is negative
c) Image distance is positive
d) Focal length is negative
12.
A person 17.0 m tall is standing 2.5 m in front of a camera. The camera uses a convex lens whose focal length is 0.05 m. Find the image distance?
a) Image distance = 1.96 m
b) Image distance = 19.6 m
c) Image distance = 0.5 m
d) Image distance = 0.05 m
13.
Which of the following is true for diverging lens?
a) Image distance is negative
b) Object distance is positive
c) Image distance is positive
d) Focal length is positive
14.
Where are lens used?
a) Photograph enlarger
b) All of these
c) Binoculars
d) Microscope
15.
Where are lens used?
a) Cameras
b) Spectacles
c) All of these
d) Magnifying glass
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