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

2. 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

3. An image formed by a concave lens is always

4. The time taken by the mirror M to rotate through an angle 2π/8 is

5. Fiber optics also used to transmit light

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

7. A circular scale is attached and graduated in

8. The resolution of microscope depends on objective’s

9. Graham Ball photo phone used a modulated beam of

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

11. Photo phone was invented by

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

13. Who attempted to measure the speed of light

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

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

16. Fire optics has ability to transmit

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

18. 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

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

20. The speed of light in other material is always


 

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

Maan Ali

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