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Physics 10 Chapter 3 - Geometrical Optics - 22
1.
How many fibre-optics tubes an endoscope uses?
a) Two
b) Three
c) One
d) Four
2.
What is the medical procedure called that uses any type of endoscope?
a) Arthroscopy
b) Geometrical optics
c) Endoscopy
d) Microscopy
3.
What is the convex lens called that is used to magnify images of small objects?
a) Refracting telescope
b) Compound microscope
c) Simple telescope
d) Simple microscope
4.
Where the object is placed in simple microscope?
a) Object is placed inside lens’s focal point
b) Object is placed beyond 2F
c) Object is placed at 2F
d) Object is placed between F and 2F
5.
What is the nature of image, produced when object is located inside lens’s focal point?
a) Virtual
b) Erect
c) Magnified
d) All of these
6.
What is the angular size θ′ of the final image produced by the magnified glass divided by an angular size θ of the object seen without the magnifying glass called?
a) Linear magnification
b) Simplifying power
c) Resolving power
d) Angular magnification
7.
What is the angular size θ′ of the final image produced by the magnified glass divided by an angular size θ of the object seen without the magnifying glass called?
a) Simplifying power
b) Linear magnification
c) Magnifying power
d) Resolving power
8.
With which symbol, magnifying power is denoted?
a) Symbol: A
m
b) Symbol: A
c) Symbol: m
d) Symbol: M
9.
What is the formula of magnifying power?
a) M = θ′ / θ
b) M = θ / θ′
c) M = θ′ x θ
d) M = θ + θ′
10.
With which symbol, angular magnification is denoted?
a) Symbol: m
b) Symbol: M
c) Symbol: A
m
d) Symbol: A
11.
What is the formula of angular magnification?
a) M = θ + θ′
b) M = θ′ / θ
c) M = θ′ x θ
d) M = θ / θ′
12.
If ‘d’ is equal to 25cm, then what is the formula of magnifying power for simple microscope?
a) M = (d / f) + 1
b) M = (f / d) + 1
c) M = (f / d) - 1
d) M = (d / f) - 1
13.
What is the ability of an instrument to distinguish between two closely packed objects or points called?
a) Simplifying power
b) Linear magnification
c) Resolving power
d) Magnifying power
14.
How many converging lens(s) are present in compound microscope?
a) Three
b) Four
c) Two
d) One
15.
At which distance, magnified image produced by simple microscope can be seen clearly?
a) 5 cm
b) 15 cm
c) 25 cm
d) 35 cm
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