REVISED QUESTION BANK
2024 –25
I PUC
PHYSICS (33)
DEPARTMENT OF SCHOOL EDUCATION
(PRE–UNIVERSITY)
18th CROSS, MALLESHWARAM,
BANGALORE
, COORDINATOR:
B. MAHESH
PRINCIPAL,
GOVT. PU COLLEGE,
MYLANAYAKANAHOSAHALLI,
CHANNAPATNA TQ, RAMANAGARA DIST
COMMITTEE MEMBERS
1. ADITHYA RAO. K. V.
LECTURER IN PHYSICS,
GPU COLLEGE, SRINGERI
CHIKMAGALUR DIST.
2. DEVARAJ TALAKALLU,
LECTURER IN PHYSICS,
GOVT. SCIENCE PU COLLEGE,
AT POST DASTIKOPPA, KALAGHATAGI TALUK,
DHARWAD DIST.
3. MAHESH,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE FOR GIRLS,
RAMANAGARA, RAMANAGARA DIST.
4. PRASANNA K. V.,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE,
KOPPA, CHIKMAGALUR DIST.
5. PRAKASH,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE FOR GIRLS,
CHENNAPATNA, RAMANAGARA DIST.
6. CHETHANA,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE FOR BOYS,
CHANNAPATNA, RAMANAGARA DIST.
, 1. UNITS AND MEASUREMENT
MULTIPLE CHOICE QUESTIONS:
1. The units that are used for fundamental physical quantities are called
(A) System of units (B) fundamental units
(C) Derived units (D) All of these
2. Which of the following physical quantity has same unit in CGS, FPS, MKS and SI systems of
unit?
(A) Mass (B) Length (C) Time (D) Energy
3. Which of the following physical quantity is not a fundamental quantity?
(A) Length (B) temperature (C) electric current (D) energy
4. The SI unit of electric current is
(A) watt (B) joule (C) volt (D) ampere
5. The SI unit of solid angle is
(A) Radian (B) degree (C) steradian (D) radian/metre
6. pascal is the unit of
(A) force (B) pressure (C) force (D) energy
7. The SI unit of frequency is
(A) metre/second (B) radian/second (C) newton-metre (D) hertz
8. Which of the following statement is incorrect regarding significant figures?
(A) All non-zero digits are significant.
(B) All the zeros between two non-zero digits are significant.
(C) The trailing zero(s) in a number with a decimal point are significant.
(D) The power of 10 is counted while counting the number of significant figures.
9. The number of significant figures in 30600
(A) 3 (B) 2 (C) 5 (D) 4
10. The number of significant figures in 0.03400
(A) 2 (B) 3 (C) 4 (D) 5
11. Which of the following pairs of physical quantities have same dimensions?
(A) Force and power (B) force and torque
(C) Torque and work (D) torque and power
12. The dimensional formula of frequency
(A) [M0L0T–1] (B) [M0L1T–2] (C) [M1L1T–2] (D) [M0L1T0]
13. The dimensional formula of gravitational constant
(A) [M–1L3T–2] (B) [M1L3T–2] (C) [M2L3T–1] (D) [M2L–2T0]
14. Which of the following physical quantity has a unit but no dimensions?
(A) Strain (B) relative density (C) plane angle (D) stress
15. Which of the following constant is a dimensionless constant?
(A) G (B) π (C) c (D) h
16. The physical quantity having the dimensions [M1L–1T–2] is
(A) Angular momentum(B) energy (C) pressure (D) force
17. Statement i: When we change the unit of measurement of a quantity, its numerical value
changes.
Statement ii: Smaller the unit of measurement smaller is its numerical value.
(A) Both the statements are true and statement ii is the correct explanation of statement i.
(B) Both the statements are true but statement ii is not correct explanation of statement i
(C) Statement i is true but statement ii is false.
(D) Both the statements are false.
18. Statement i: The units of a derives are expressed as combination of the basic units
Statement ii: There are only seven basic quantities
(A) Both the statements are true and statement ii is the correct explanation of statement i.
(B) Both the statements are true but statement ii is not correct explanation of statement i
(C) Statement i is true but statement ii is false. (D) Both the statements are false.
, 19. Statement i: The number of significant figures in 3050 is three and the number 0.02300 has four
significant figures.
Statement ii: All non-zero digits are significant.
(A) Both the statements are true and statement ii is the correct explanation of statement i.
(B) Both the statements are true but statement ii is not correct explanation of statement i
(C) Statement I is true but statement ii is false.
(D) Both the statements are false.
20. If force F, acceleration A and time T are basic physical quantities, the dimensions of energy are
(A) [F2A–1T1] (B) [F1A1T2] (C) [F1A1T–2] (D) [F1A–1T1]
FILL IN THE BLANKS
(strain, plane angle, temperature, frequency, significant)
1. ________ is a basic physical quantity.
2. In a number, the zeros between two non-zero digits are _________
3. ___________ is a supplementary quantity.
4. The physical quantity that has neither a unit nor a dimesion is ___________
5. The physical quantity having the dimension [M0L0T–1] is ___________
TWO MARK QUESTIONS
1. What are basic units? Give one example.
2. Write the SI unit and dimensional formula for moment of inertia.
3. State the principle of homogeneity of dimensions.
4. Give any two limitations of dimensional method.
THREE MARK QUESTIONS
1. Check the dimensional correctness of the equation x = v0t + ½ at2 where the symbols having their
usual meaning.
2. Check the dimensional correctness of the equation T = 2π where L is the length of a simple
pendulum, T is its time period and g is the acceleration due to gravity.
3. Derive the expression for period of a simple pendulum which depends on its length (l) and acceleration
due to gravity (g) using dimensional analysis.
ANSWERS TO MULTIPLE CHOICE QUESTIONS:
1 2 3 4 5 6 7 8 9 10
B C D D C B D D A C
11 12 13 14 15 16 17 18 19 20
C A A C B C C A B B
ANSWERS TO FIBS:
1. temperatutre; 2. singnificant 3. plane angle 4. strain 5. frequency
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2024 –25
I PUC
PHYSICS (33)
DEPARTMENT OF SCHOOL EDUCATION
(PRE–UNIVERSITY)
18th CROSS, MALLESHWARAM,
BANGALORE
, COORDINATOR:
B. MAHESH
PRINCIPAL,
GOVT. PU COLLEGE,
MYLANAYAKANAHOSAHALLI,
CHANNAPATNA TQ, RAMANAGARA DIST
COMMITTEE MEMBERS
1. ADITHYA RAO. K. V.
LECTURER IN PHYSICS,
GPU COLLEGE, SRINGERI
CHIKMAGALUR DIST.
2. DEVARAJ TALAKALLU,
LECTURER IN PHYSICS,
GOVT. SCIENCE PU COLLEGE,
AT POST DASTIKOPPA, KALAGHATAGI TALUK,
DHARWAD DIST.
3. MAHESH,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE FOR GIRLS,
RAMANAGARA, RAMANAGARA DIST.
4. PRASANNA K. V.,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE,
KOPPA, CHIKMAGALUR DIST.
5. PRAKASH,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE FOR GIRLS,
CHENNAPATNA, RAMANAGARA DIST.
6. CHETHANA,
LECTURER IN PHYSICS,
GOVT. PU COLLEGE FOR BOYS,
CHANNAPATNA, RAMANAGARA DIST.
, 1. UNITS AND MEASUREMENT
MULTIPLE CHOICE QUESTIONS:
1. The units that are used for fundamental physical quantities are called
(A) System of units (B) fundamental units
(C) Derived units (D) All of these
2. Which of the following physical quantity has same unit in CGS, FPS, MKS and SI systems of
unit?
(A) Mass (B) Length (C) Time (D) Energy
3. Which of the following physical quantity is not a fundamental quantity?
(A) Length (B) temperature (C) electric current (D) energy
4. The SI unit of electric current is
(A) watt (B) joule (C) volt (D) ampere
5. The SI unit of solid angle is
(A) Radian (B) degree (C) steradian (D) radian/metre
6. pascal is the unit of
(A) force (B) pressure (C) force (D) energy
7. The SI unit of frequency is
(A) metre/second (B) radian/second (C) newton-metre (D) hertz
8. Which of the following statement is incorrect regarding significant figures?
(A) All non-zero digits are significant.
(B) All the zeros between two non-zero digits are significant.
(C) The trailing zero(s) in a number with a decimal point are significant.
(D) The power of 10 is counted while counting the number of significant figures.
9. The number of significant figures in 30600
(A) 3 (B) 2 (C) 5 (D) 4
10. The number of significant figures in 0.03400
(A) 2 (B) 3 (C) 4 (D) 5
11. Which of the following pairs of physical quantities have same dimensions?
(A) Force and power (B) force and torque
(C) Torque and work (D) torque and power
12. The dimensional formula of frequency
(A) [M0L0T–1] (B) [M0L1T–2] (C) [M1L1T–2] (D) [M0L1T0]
13. The dimensional formula of gravitational constant
(A) [M–1L3T–2] (B) [M1L3T–2] (C) [M2L3T–1] (D) [M2L–2T0]
14. Which of the following physical quantity has a unit but no dimensions?
(A) Strain (B) relative density (C) plane angle (D) stress
15. Which of the following constant is a dimensionless constant?
(A) G (B) π (C) c (D) h
16. The physical quantity having the dimensions [M1L–1T–2] is
(A) Angular momentum(B) energy (C) pressure (D) force
17. Statement i: When we change the unit of measurement of a quantity, its numerical value
changes.
Statement ii: Smaller the unit of measurement smaller is its numerical value.
(A) Both the statements are true and statement ii is the correct explanation of statement i.
(B) Both the statements are true but statement ii is not correct explanation of statement i
(C) Statement i is true but statement ii is false.
(D) Both the statements are false.
18. Statement i: The units of a derives are expressed as combination of the basic units
Statement ii: There are only seven basic quantities
(A) Both the statements are true and statement ii is the correct explanation of statement i.
(B) Both the statements are true but statement ii is not correct explanation of statement i
(C) Statement i is true but statement ii is false. (D) Both the statements are false.
, 19. Statement i: The number of significant figures in 3050 is three and the number 0.02300 has four
significant figures.
Statement ii: All non-zero digits are significant.
(A) Both the statements are true and statement ii is the correct explanation of statement i.
(B) Both the statements are true but statement ii is not correct explanation of statement i
(C) Statement I is true but statement ii is false.
(D) Both the statements are false.
20. If force F, acceleration A and time T are basic physical quantities, the dimensions of energy are
(A) [F2A–1T1] (B) [F1A1T2] (C) [F1A1T–2] (D) [F1A–1T1]
FILL IN THE BLANKS
(strain, plane angle, temperature, frequency, significant)
1. ________ is a basic physical quantity.
2. In a number, the zeros between two non-zero digits are _________
3. ___________ is a supplementary quantity.
4. The physical quantity that has neither a unit nor a dimesion is ___________
5. The physical quantity having the dimension [M0L0T–1] is ___________
TWO MARK QUESTIONS
1. What are basic units? Give one example.
2. Write the SI unit and dimensional formula for moment of inertia.
3. State the principle of homogeneity of dimensions.
4. Give any two limitations of dimensional method.
THREE MARK QUESTIONS
1. Check the dimensional correctness of the equation x = v0t + ½ at2 where the symbols having their
usual meaning.
2. Check the dimensional correctness of the equation T = 2π where L is the length of a simple
pendulum, T is its time period and g is the acceleration due to gravity.
3. Derive the expression for period of a simple pendulum which depends on its length (l) and acceleration
due to gravity (g) using dimensional analysis.
ANSWERS TO MULTIPLE CHOICE QUESTIONS:
1 2 3 4 5 6 7 8 9 10
B C D D C B D D A C
11 12 13 14 15 16 17 18 19 20
C A A C B C C A B B
ANSWERS TO FIBS:
1. temperatutre; 2. singnificant 3. plane angle 4. strain 5. frequency
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