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Physics 10 Chapter 3 - Geometrical Optics - 24
1.
Which of the following is correct about astronomical telescope?
a) All of these
b) Distance between objective and eyepiece is equal to fo + fe
c) Objective lens has larger focal length than eyepiece
d) It is used to see distant astronomical objects
2.
Which of the following is correct about astronomical telescope?
a) Distance between objective and eyepiece is greater than fo + fe
b) It is used to see very small objects
c) Objective lens has smaller focal length than eyepiece
d) Objective lens has larger focal length than eyepiece
3.
Which of the following is correct about astronomical telescope?
a) Objective lens has smaller focal length than eyepiece
b) Distance between objective and eyepiece is greater than fo + fe
c) Distance between objective and eyepiece is equal to fo + fe
d) It is used to see very small objects
4.
In which of the following fields of sciences, compound microscope?
a) All of these
b) Geology
c) Botany
d) Microbiology
5.
Which of the following is correct about astronomical telescope?
a) It is used to see very small objects
b) Distance between objective and eyepiece is greater than fo + fe
c) Objective lens has smaller focal length than eyepiece
d) It is used to see distant astronomical objects
6.
What is the telescope called that uses two converging lenses?
a) Refracting telescope
b) Simple telescope
c) Binomial telescope
d) Terrestrial telescope
7.
What is the telescope that has one extra lens between objective and eyepiece?
a) Simple telescope
b) Refracting telescope
c) Binomial telescope
d) Terrestrial telescope
8.
What is the formula of magnification for refracting telescope?
a) M = fe + fo
b) M = fo + fe
c) M = fo / fe
d) M = fe / fo
9.
Human eye acts like a..............?
a) Camera
b) Slide projector
c) Reflecting prisms
d) Photograph enlarger
10.
In place of film, which part of eye records the picture?
a) Iris
b) Retina
c) Pupil
d) Lens
11.
Which of the following lens is present in eye?
a) Parabolic lens
b) Converging lens
c) Plane lens
d) Diverging lens
12.
What is the light sensitive part of eye called?
a) Pupil
b) Retina
c) Lens
d) Iris
13.
Where lens forms image in human eye?
a) Iris
b) Retina
c) Cornea
d) Pupil
14.
What is the transparent part of eye through which light enters in human eye?
a) Iris
b) Pupil
c) Retina
d) Cornea
15.
How many converging lenses a refracting telescope use?
a) Two
b) One
c) Four
d) Three
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