ECAT Physics Optical Instruments 2 Test Online

Photo of Maan Ali Maan AliLast Updated: May 5, 2025

Physics Optical Instruments 2 Online Test

ECAT Physics Optical Instruments 2 Chapter Online Test

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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ECAT Physics Optical Instruments 2 Test Online

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Engineering Subject

1. A telescope is rotatable about the same vertical axis as the turntable, with a scale which is

2. Graham Ball photo phone used a modulated beam of

3. The time taken by the mirror M to rotate through an angle 2Ď€/8 is

4. In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the device

5. Photo phone was invented by

6. At certain speed, the time taken by light in moving from M to m and back to M is equal to the time taken by

7. The advantage / advantages of fiber optics than radio wave carriers

8. An image formed by a concave lens is always

9. Who attempted to measure the speed of light

10. The speed of light in other material is always

11. A double convex lens acts as a diverging lens when the object is

12. Fiber optics also used to transmit light

13. Fire optics has ability to transmit

14. Angle subtended by any side of the eight-sided mirror at the centre is

15. The time taken by light for its passage from M to m and back is

16. A wide objective and the use of blue light of short wavelength produces

17. A circular scale is attached and graduated in

18. The resolution of microscope depends on objective’s

19. The refracting edge of the prism must be parallel to the axis of rotation of the telescope, so that the turn table is leveled using

20. The minimum distance between an object and its image in convex lens is


 

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Photo of Maan Ali Maan AliLast Updated: May 5, 2025
Photo of Maan Ali

Maan Ali

Hey there! I'm Maan Ali, your online test prep pal. Join me in the adventure of acing exams with ease. I'll share tricks, practice tests, and all you need to rock your studies. Let's make learning fun and success a sure thing!

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