EASY
11th West Bengal Board
IMPORTANT
Earn 100

The percentage error in the measurement of mass and speed are 2% and 3% respectively. The error in the measurement of kinetic energy obtained by measuring mass and speed will be

50% studentsanswered this correctly

Important Questions on Measurement and Physics

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 17
A simple pendulum completes 20 oscillations in 25 s. The time is measured by a stopwatch if least count 0.2 s . The error in measurement of time is:
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 18
When a current of (2.5±0.5) A flows through a wire, it develops a potential difference of  (20±1) V, the resistance of the wire is
 
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 19
The length and breadth of a metal sheet are 3.124 m and 3.002 m respectively. The area of this sheet upto four correct significant figure is :
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 20
Two resistances are expressed as R1=(4± 0.5) Ω and  R2=(12± 0.5) Ω. What is the maximum absolute error when they are connected in series ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 21
The radius of a thin wire is 0.16 mm. The area of cross-section taking significant figure into consideration in square millimeters is?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 22
The density of a cube is measured by measuring its mass and the length of its sides. If the maximum errors in the measurement of mass and length are 4% and 3%, respectively, then find the maximum error in the measurement of the density of cube.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 23
If a current of  2.33 A is passed through a resistance of 10.485 Ω, the potential is 24.43005 V. Its value in proper significant figures would be.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 1 - Measurement and Physics>EXERCISE>Q 24
If the length of the pendulum is (0.8±0.01) m and time period is (2.5±0.12) s, then the percentage error in acceleration due to gravity will be :