Physics Optical Instruments Test 1 Online Mcqs

Maan AliLast Updated: October 13, 2025

Start your preparation for Physics Optical Instruments Test 1 Online Mcqs. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Optical Instruments Test 1 Question Answer

Total Questions: 20
Time Allowed: 10 Minutes
Total Marks: 20
How to Attempt Test: Please choose the right Option in MCQ-type question.
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Physics Optical Instruments Test 1 Practice Mcqs with Explanation

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Engineering Subject

1. If the focal length of eye piece is 25.0 mm find its magnification

2. In an astronomical telescope is the objective has the focal length f₀ is

3. The function of collimator is

4. Telescope is an optical device used for viewing

5. Magnifying power of a astronomical telescope in normal adjustment is

6. A microscope has an objective lens of 10 mm focal length and an eye piece of 25.0 mm focal length what is the distance between the lenses

7. In normal adjustment, the length of the telescope is

8. When an image is placed at the focal length of the eye piece, the final image formed at

9. In viewing the distant objects the angle subtended at the telescope is

10. Spectrometer using diffraction grating can measure

11. Turn table is the plate form over which we place

12. In an astronomical telescope the eye piece has the focal length fee is

13. Spectrometer can measure quite accurately prism

14. When an image formed by the objective lies at the focus of both the objective and the eye-piece, the telescope is said to be in Final adjustment

15. A spectrometer is an optical device used to study the spectra from different sources of light which is

16. The different parts of spectrometer

17. If the focal length of objective is 10 mm find its magnification

18. If the magnification M₁ = 20.0 for objective and M₂ = 12.0 then total magnification is

19. The image formed after objective lens of an astronomical telescope is

20. A simple telescope is consists of


 

How to Score High in Physics Optical Instruments Test 1 Online Mcqs?

Mastering scientific subjects requires conceptual clarity.

Key Preparation Tips:

  • Concepts First: Ensure you understand the underlying theories before attempting the MCQs.
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Maan AliLast Updated: October 13, 2025

Maan Ali

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2 Comments

  1. Please correct these mistakes:

    3. The revolving power of a lens is given by
    (a) R = 1/?min= D/1.22 ?

    7. A compound microscope is consists of an eye piece of focal length
    (a) Large

    Reply

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