MCQ Class 10 Maths Real Numbers Rational and Irrational Numbers

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1. There will be total 30 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. When light goes from an optically rarer to an optically denser medium,

Question 1 of 30

2. The correct relation between u, v and f is:

Question 2 of 30

3. After reflection through a concave mirror, rays of light

Question 3 of 30

4. A ray of light incident on the optical centre of a spherical lens, after refraction passes through:

Question 4 of 30

5. Which one of the following materials cannot be used to make lens?

Question 5 of 30

6. If a lens has a focal length, F = +12 cm, then it is a

Question 6 of 30

7. Pencil immersed partly in water appears to be bent due to

Question 7 of 30

8. Angle of incidence is

Question 8 of 30

9. A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting a better value of focal length of the mirror, what should the student do?

Question 9 of 30

10. When light goes from an optically denser to an optically rarer medium,

Question 10 of 30

11. A simple magnifying glass consists of:

Question 11 of 30

12. The focal length of a convex lens is

Question 12 of 30

13. Whenever light goes from one medium to another, the characteristic that does not change is:

Question 13 of 30

14. After refraction through a rectangular glass slab the emergent ray is

Question 14 of 30

15. Angle of reflection is

Question 15 of 30

16. If the refractive index of two media are equal, then

Question 16 of 30

17. Is the optical centre always at the centre of lens?

Question 17 of 30

18. If the image formed by a concave mirror is observed to be virtual, erect and larger than the object then the position of the object will be

Question 18 of 30

19. Which of the following letter shows lateral inversion?

Question 19 of 30

20. Drop of water behaves likes a

Question 20 of 30

21. If a lens has a focal length, f = -12 cm. then it is a

Question 21 of 30

22. A magnifying glass is a

Question 22 of 30

23. If focal length of a spherical mirror is 20 cm, then its radius of curvature is equal to

Question 23 of 30

24. To determine the focal length of convex lens by obtaining a sharp image of a distant object we generally follow the following steps which are not in proper sequence.
(a) Hold the lens between the object and the screen
(b) Measure the distance between the lens and the screen
(c) Select a well lit distant object
(d) Adjust the position of the lens to form a sharp image
The correct sequence will be:

Question 24 of 30

25. Harry is standing in front of a plane mirror at a distance of 6 m. His image on the other side will form at a distance of

Question 25 of 30

26. The unit of linear magnification is

Question 26 of 30

27. Light travels faster in substance X as compared to substance Y, then refractive index is greater for

Question 27 of 30

28. An object 2 cm high is placed at a distance of 15 cm from a concave mirror which produces an inverted image 4 cm high. Find the position of the image.

Question 28 of 30

29. How many foci does a lens have?

Question 29 of 30

30. Speed of light in vacuum is:

Question 30 of 30

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