First Year Physics Mcqs Chapter 1

First Year Physics Mcqs Chapter 1

Multiple choice questions of Chapter 1 of Physics for First Year.

1. The branch of physics which deals with the ultimate particles of which the matter is composed is:
a) Plasma physics
b) Atomic physics
c) Nuclear physics
d) Particle physics

2. The branch of physics which deals with atomic nuclei is called
a) Acoustics
b) Thermodynamics
c) Magnetism
d) Nuclear physics

3. Silicon is abundantly obtained from:
a) Water
b) Metal
c) Sand
d) Stones

4. The number of base units are:
a) Three
b) Five
c) Seven
d) Nine

5. Which of the following is a derived quantity:
a) Force
b) Mass
c) Length
d) Time

6. Which of the following is SI base unit?
a) gram
b) slug
c) Newton
d) Kilogram

7. Which one of the following is not a unit of length:
a) Angstrom
b) Micron
c) Radian
d) Light year

8. Which is not a base unit in SI units?
a) Kilogram
b) Joule
c) Ampere
d) Kelvin

9. An example of derived unit is
a) Candela
b) Ampere
c) Coulomb
d) Mole

10. Candela is the SI unit of
a) Charge
b) Luminous intensity
c) Power
d) Refractive index

11. An alternate unit to Kgms-1 is
a) Js
b) Ns
c) Nm
d) N

12. The SI unit of plane angle is
a) Steradian
b) Radian
c) Degree
d) Candela

13. Steradian is the angel which lies in:
a) One dimension
b) Two dimensions
c) Three dimensions
d) None

14. The SI unit of the solid angle is
a) Degree
b) Steradian
c) Revolution
d) Radian

15. The solid angle subtended at the center of sphere by an area of its surface equal to the square of radius of the sphere is called:
a) Degree
b) Radian
c) Minute
d) Steradian

16. Which is a derived unit:
a) Candela
b) Ampere
c) Kelvin
d) Newton

17. The unit of force is________ and its symbol is_______ which is the correct pair?
a) Newton, n
b) Newton, N
c) newton, n
d) newton, N

18. Which one is the correct representation of the unit of pressure?
a) Newton/Meter
b) newton2/meter
c) Newton2/meter2
d) Newton/Meter2

19. Which of the following is least multiple:
a) Pico
b) Femto
c) Nano
d) Atto

20. Which one is the highest power multiple?
a) giga
b) mega
c) kilo
d) deca

21. The SI unit of intensity of light is:
a) Mole
b) Kelvin
c) Candela
d) Ampere

22. 1024 can be written in scientific notation as
a) 1.024x 103
b) 2^10
c) 0.000976
d) 1/0300097

23. Error occurs due to negligence and inexperience of a person is:
a) Systematic Error
b) Random Error
c) Personal Error
d) None

24. Error in measurement may occur due to
a) Inexperience of a person
b) The faulty apparatus
c) Inappropriate method
d) Due to all reasons in a, b and c

25. In any measurement the significant figures are
a) All accurately known and all doubtful digits
b) Only accurately known digits
c) Only doubtful digits
d) All accurately know digits and the first doubtful digit

26. Number of significant figures in 0.0173 are:
a) Three
b) Four
c) Five
d) Two

27. A student added three figures 72.1, 3.32 and 0.003. The correct answer regarding the rules of the addition of the significant figures will be
a) 75.423
b) 75.42
c) 75.4
d) 75

28. If the reading is taken with measuring scale whose minimum division is 1mm, then the correct reading is:
a) 0.2145 m
b) 0.21 m
c) 0.214 m
d) None

29. 75.560 is round off as:
a) 75.6
b) 75.7
c) 76.00
d) None

30. Zero to the right of non-zero digits are:
a) Significant
b) Not significant
c) May or may not be significant
d) None

31. What is the number of significant figures in the measurement recorded as 8.70 × 10^4 ?
a) 1
b) 3
c) 4
d) 7

32. Zero is not significant only if it
a) Lies to the left of a significant digit
b) is between two digits
c) is to the right of a significant digit
d) is before the decimal point

33. Significant figures in 0.000846 are
a) Six
b) Four
c) Seven
d) Three

34. The sum of the three numbers, 2.7543, 4.10 and 1.273, up to correct decimal places is
a) 8.1
b) 8.13
c) 8.1273
d) 8.127

35. 73.650 rounded off up to one decimal is
a) 73.6
b) 73.7
c) 74.00
d) 73.65

36. Absolute uncertainties are added in following operations:
a) Multiplication
b) Division
c) Subtraction
d) None

37. An accurate measurement is one which has less
a) Precision
b) Absolute uncertainty
c) Fractional uncertainty
d) None

38. Smaller is the least count of the instrument, more is the measurement:
a) Accurate
b) Precise
c) Accurate and precise
d) None of these

39. Which is a correct record for the diameter of wire when measured my a screw gauge of least count 0.001 cm:
a) 2.3 cm
b) 2.31 cm
c) 2.312 cm
d) 2.3124 cm

40. Which one of the following is not regarded as a fundamental quantity in Physics?
a) Length
b) Mass
c) Time
d) Weight

41. The dimension of the following pair is not the same
a) work & energy
b) work and torque
c) Momentum & impulse
d) Mass & moment of inertia

42. Unit of G is ?
a) Nm2 kg2
b) N m2 kg
c) N m2 kg-2
d) None

43. A light year is a unit for
a) Time
b) Distance
c) Velocity
d) Time period

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