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11th Class Part 1 Physics Chapter 10 Test Online MCQs With Answers
Question # 1
The final image formed by a simple microscope.
Choose an answer
Virtual and inverted
Real and erected
Virtual and erected
Real and inverted
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Question # 2
Image formed by a concave lens is
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Real
Virtual
Erect
None of these
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Question # 3
Critical angle is that angle of incident ofr which angle of refraction is.
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90
o
45
o
42
o
24
o
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Question # 4
A double convex lens acts as diverging lens when the object is
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At infinity
Inside the focus
A way from focus
A a large distance from lens
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Question # 5
If an object is placed with in the focal length of a convex lens, its image is formed.
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Real
Inverted
Virtual
Smaller than object
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Question # 6
The final image seen through ey piece in telescope is.
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Real, enlarge and inverted
Vertual, enlarge and erect
Virtual, enlarge and inverted
In Real, enlarge and erect
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Question # 7
The least distance of distinct vision for the normal eye is.
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15 cm
25 cm
125 cm
25 m
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Question # 8
Information carrying capacity of optical fibre called.
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Capacity
Band width
Immunity
Ability
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Question # 9
The light emitted from light emitting diode has wave length.
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1.1 micro meter
1.3 micro meter
1.5 micro meter
1.7 micro meter
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Question # 10
The focal length of convex lens
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Negative
Positive
small
Large
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Question # 11
More details of an object can be seen with a microscope by using
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Green light
Red light
Yellow light
Blue light
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Question # 12
Multimode step index fibre is useful for
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Long distances
Short distances
Better quality
Low price
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Question # 13
The speed of light was measured correctly by
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Galileo
Michelson
Newton
Maxwell
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Question # 14
If an object lies at focus point F in front of a converd lens, its image is formed at.
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2F
F
3F
Infinity
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Question # 15
The location of near point changes with
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Age
Size of the eye
Sharpness of the eye
None of these
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Question # 16
The ability of reveal the minor details of an object under examination is called.
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Resolving power
Magnification
Scattering
Reflection
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Question # 17
The device used to study the spectra from different sources of light is
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Telescope
Optical fibre
Spectrometer
Microscope
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Question # 18
The diameter of a lens is called
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Focal length
Aperture
Principle axis
Centre
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