Home Physics Optical Instruments Test Online Preparation Mcqs

Physics Optical Instruments Test Online Preparation Mcqs

Physics Optical Instruments Test Online Preparation Mcqs With Answers Start Below

 7%

Question 1 of 15

1. Which one type of fibre is more suitable for transmission of signals in which white light is used?
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. The equation αmin = 1.22 λ/D was devised by
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. In a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. A convex and concave lens of focal length ‘f’ are in contact. The focal length of the combination will be
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. If a convex lens of focal length ‘f’ is cut into two identical halves along the lens diameter, the focal length of each half is
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. In optic fiber transmission the repeaters are separated through a distance of _________ km in newer system.
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. Critical angle is that incident angle in denser medium for which angle of refraction is
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. Typical fibre optic communication system uses light of which wavelength
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The minimum distance between an object and its real image in a convex lens is
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. The speed of light in the medium of refractive index of 1.5 is
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. The diamond shines due to
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. Image of an object 5 mm high is only 1 cm high. Magnification produced by lens is
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. If an object is placed away from ‘2f’ of a converting lens, then the image will be
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. The electrical signals change into light signals for transmission through optical fibre. A light pulse represent.
A.
B.
C.
D.

Question 15 of 15


 

Related Study Posts:

Leave a Reply

Your email address will not be published. Required fields are marked *

error: Content is protected !!