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Physics 10 Chapter 3 - Geometrical Optics - 23
1.
Which of the following are features of compound microscope?
a) It does not give magnification
b) It gives greater magnification than a single lens
c) Eyepiece lens has no focal length
d) Objective lens has very large focal length
2.
Which of the following are features of compound microscope?
a) Eyepiece lens has no focal length
b) Objective lens has very large focal length
c) Objective lens has a short focal length
d) It does not give magnification
3.
Which of the following are features of compound microscope?
a) Eyepiece lens has focal length of a few cm
b) Objective lens has very large focal length
c) Eyepiece lens has no focal length
d) It does not give magnification
4.
Where does the objective lens of compound microscope form image?
a) Outside focal point of eyepiece
b) Inside focal point of eyepiece
c) Outside 2F of eyepiece
d) Inside focal point of objective
5.
Where is the final image of compound microscope formed?
a) Inside focal point of eyepiece
b) Outside focal point of objective
c) Outside focal point of eyepiece
d) Inside focal point of objective
6.
Which of the following is correct about compound microscope?
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) All of these
7.
Which of the following is correct about compound microscope?
a) Objective lens has smaller focal length than eyepiece
b) Objective lens has larger focal length than eyepiece
c) It is used to see distant astronomical objects
d) Distance between objective and eyepiece is equal to fo + fe
8.
Which of the following is correct about compound microscope?
a) Distance between objective and eyepiece is equal to fo + fe
b) It is used to see distant astronomical objects
c) Objective lens has larger focal length than eyepiece
d) Distance between objective and eyepiece is greater than fo+fe
9.
Which of the following is correct about compound microscope?
a) Objective lens has larger focal length than eyepiece
b) It is used to see distant astronomical objects
c) It is used to see very small objects
d) Distance between objective and eyepiece is equal to fo + fe
10.
What is ‘L’ in the formula “M = (L / fo) {1 + (d / fe)}”?
a) Distance of object from eye
b) Length of objective lens
c) Length of compound microscope
d) Length of eyepiece
11.
What is ‘L’ in the formula “M = (L / fo) {1 + (d / fe)}”?
a) Near distance of object from eye
b) Distance between objective and eyepiece
c) Length of objective lens
d) Length of eyepiece
12.
What is ‘d’ in the formula “M = (L / fo) {1 + (d / fe)}”?
a) Length of objective lens
b) Distance between objective and eyepiece
c) Length of eyepiece
d) Near distance of object from eye
13.
What is ‘fo’ in the formula “M = (L / fo) {1 + (d / fe)}”?
a) Image produced by eyepiece
b) Focal length of eyepiece
c) Focal length of objective
d) Image produced by objective
14.
16. The solution set of parallel lines is empty set.
a) Focal length of eyepiece
b) Image produced by objective
c) Focal length of objective
d) Image produced by eyepiece
15.
What is the formula of magnifying power for compound microscope?
a) M = (fo / L ) {1 + (d / fe)}
b) M = (L / fo) {1 + (d / fe)}
c) M = (fo / L) {1 - (d / fe)}
d) M = (L / fo) {1 - (d / fe)}
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