mcq related to microscope

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1. Which of the following is not a component of a compound microscope?

a)       Eyepiece

b)       Objective lens

c)        Camera

d)       Diaphragm

    2. The compound microscope has how many lens systems?

a)       1

b)       2

c)        3

d)       4

   3. What is the purpose of the diaphragm in a compound microscope?

a)       To control the amount of light entering the microscope

b)       To focus the image

c)        To magnify the image

d)       To change the color of the image

    4. Which lens in a compound microscope has the highest magnification?

a)       Eyepiece

b)       Objective lens

c)        Intermediate lens

d)       All lenses have the same magnification

    5. The distance between the objective lens and the specimen in a compound microscope is known as what?

a)       Working distance

b)       Focusing distance

c)        Magnification distance

d)       Objective distance

    6. How is the total magnification of a compound microscope calculated?

a)       By multiplying the eyepiece magnification by the objective lens magnification

b)       By dividing the eyepiece magnification by the objective lens magnification

c)        By adding the eyepiece magnification and the objective lens magnification

d)       By subtracting the eyepiece magnification from the objective lens magnification

    7. What is the purpose of the coarse focus knob in a compound microscope?

a)       To bring the specimen into focus

b)       To adjust the diaphragm

c)        To change the objective lens

d)       To rotate the stage

    8. What type of microscope is best for viewing living cells?

a)       Compound microscope

b)       Stereoscope microscope

c)        Electron microscope

d)       Light microscope

    9. Which of the following is not a type of objective lens in a compound microscope?

a)       Plan

b)       Achromatic

c)        Ultraviolet

d)       Fluorescence

    10. What is the maximum magnification of a typical compound microscope?

a)       100x

b)       1000x

c)        10000x

d)       100000x

11. The magnifying power of the compound microscope is the product of the magnification of the objective lens and _____.

a)       Eyepiece

b)       Arm

c)        Reflector

d)       Body tube

Answer: a) Eyepiece

Explanation: The compound microscope’s magnifying power is the product of the magnification of the objective lens and the eyepiece.

12. The use of a single convex lens or groups of lenses is found in _____.

a)       Telescopes

b)       Fluorescent lamps

c)        Magnifying glass

d)       Option a) and c)

Answer: d) Option a) and c)

Explanation: Convex lenses are used in the eyepiece of telescopes and magnifying glass.

13. _____ is the metallic platform that is fitted to the lower part of the arm with a hole in the centre.

a)       Base

b)       Drawer tube

c)        Stage

d)       Automatic Stop

Answer: c) Stage

Explanation: The microscopic slides to be viewed are kept on the stage.

14. Stereo microscope provides _____.

a)       One-dimensional image

b)       Two-dimensional image

c)        Three-dimensional image

d)       None of the options

Answer: c) Three-dimensional image

15. Light can be focused by adjusting the _____.

a)       Base

b)       Condenser

c)        Stage

d)       Automatic Stop

Answer: b) Condenser

Explanation: Condenser is present below the diaphragm. By moving the condenser either up or down, the focus of light can be adjusted.

16. What magnification does the ocular lens provide?

a)       2x

b)       3x

c)        15x

d)       50x

Answer: c) 15x

Explanation: Ocular lenses provide magnification of 5X, 10X, 15X, and 20X.

17. _____ eyepieces are seen in the binocular head.

a)       Two

b)       Three

c)        Four

d)       Five

Answer: a) Two

Explanation: In the binocular head, two eyepieces are seen

 

Answers:

1.       C

2.       B

3.       A

4.       B

5.       A

6.       A

7.       A

8.       A

9.       D

10.    B

 

 

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