NCERT MCQ Bit Bank Series

General Science MCQ Questions For Competitive exams

Test Paper 28

Learn General science NCERT MCQ Questions

1. Real Images is

a) Inverted

b) Erect

c) Upright

d) None

a) Inverted

2. Virtual Image is

a) Inverted

b) Erect

c) Upright

d) B and C

3. Lens used for Real image are

a) Converging Lens

b) Diverging Lens

c) Both

d) None

a) Converging Lens

4. Lens used for Virtual image are

a) Converging Lens

b) Diverging Lens

c) Both

d) None

b) Diverging Lens

5. Mirrors used for Real images ?

a) Concave Mirror

b) Convex Mirror

c) Plane Mirror

d) All the above

a) Concave Mirror

6. Mirrors used for Virtual images ?

a) Concave Mirror

b) Convex Mirror

c) Plane Mirror

d) All the above

7. Real image is formed when the light rays meet at a particular point ?

a) Before reflection the mirror

b) After reflection from the mirror

c) Both

d) None

b) After reflection from the mirror

8. Virtual image is formed when the light rays meet at definite point ?

a) Before reflection the mirror

b) After reflection from the mirror

c) Both

d) None

b) After reflection from the mirror

9. Examining of eyes, ears and nose, which of the following is used ?

a) Convex Mirror

b) Concave Mirror

c) Plane Mirror

d) All the above

b) Concave Mirror

10. Which of following mirrors are used in scooter/cars as side mirrors ?

a) Concave Mirrors

b) Convex Mirrors

c) Plane Mirror

d) All the above

b) Convex Mirrors

11. Magnifying glasses are ?

a) Concave Lens

b) Convex Lens

c) Plane Mirror

d) All the above

b) Convex Lens

12. Convex lens are ?

a) Converging Lens

b) Diverging Lens

c) Both

d) None

a) Converging Lens

13. Concave lens are ?

a) Converging Lens

b) Diverging Lens

c) Both

d) None

b) Diverging Lens

14. Image formed by Concave lens are ?

a) Virtual

b) Erect

c) Smaller in size

d) All the above

15. Images can be obtained on a screen is called ?

a) Virtual Image

b) Real Image

c) Erect

d) None

b) Real Image

16. Images cannot be obtained on a screen is called ?

a) Virtual Image

b) Real Image

c) Erect

d) None

a) Virtual Image

17. Image formed from plane mirror is ?

a) Virtual

b) Erect

c) Smaller in size

d) All the above

b) Erect

18. Images formed from Concave mirror ?

a) Virtual

b) Inverted

c) Real

d) B and C

19. White lights is composed of ?

a) Five colours

b) Six colours

c) Seven colours

d) Nine colours

c) Seven colours

20. In Superconductivity, metals resistance becomes ?

a) High

b) Zero

c) 100 ohms

d) -100 ohms

b) Zero

21. Temperature of Superconductivity of Mercury ?

a) -100 degree Celsius

b) -200 degree Celsius

c) -269 degree Celsius

d) -369 degree Celsius

c) -269 degree Celsius

22. To detect nature of charge( Positive charge or negative charge) which of the following device is used ?

a) Electroscope ?

b) Rheostaut

c) Gold Leaf

d) All the above

c) Gold Leaf
Note: Gold leaf is invented by Bennet

23. Moving coil Galvanometer(MCV) is used to measure ?

a) Strength of Voltage

b) Strength of Current

c) Both

d) None

b) Strength of Current
Note: MCV is used to measure upto 10⁻⁹Amp and also to determine direction of flow of current through conductor

24. Potentio meter is used to measure ?

a) Magnitude of emf

b) Internal resistance of cell

c) Both

d) None

c) Both

25. Capacity of capacitor is measured in ?

a) ohm

b) Farad

c) Both

d) None

b) Farad

26. Transformers are used for transmitting power from ?

a) High Voltage to Low Voltage

b) Low Voltage to High Voltage

c) Both

d) None

c) Both

27. Transformer works on the principle of ?

a) Internal Induction

b) Mutual Induction

c) Both

d) None

b) Mutual Induction
Note: Transformer principle proposed by Lenz

28. First transformer was constructed by ?

a) Lenz

b) Micheal Faraday

c) Ohms

d) None

b) Micheal Faraday

29. Cell is invented by ?

a) Michael Faraday

b) Volta

c) Newton

d) None

b) Volta
Note: With his name, we call Volta cells batteries

30. Laws of Electrolysis proposed by ?

a) Michael Faraday

b) Volta

c) Newton

d) None

a) Michael Faraday

32. In Volta cells, Anode(+), Cathode(-) and Electrolyte used are ?

a) Carbon, Zinc and Dil.NH4Cl