Exercise Solutions for Physics Chapter 1 : Units and Measurements : Class 11th Maharashtra State Board : All Questions and Answers
Standard XI - Physics : Chapter 1 : Units and Measurements : Exercise Solutions : Complete Questions and Answers with Explaination
ch-1
Units and Measurements : Excercise Solutions
EXERCISE-
1. Choose the correct option.
i) [L¹M¹T-²] is the dimensional formula for
A) Velocity B) Acceleration C) Force D) Work
Answer : C) Force
ii) The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of it area is
A) 1% B) 1/2% C) 2% D) None of the Above
Answer: C) 2%
iii) Light year is a unit of
A) Time B) Mass C) Distance D) Luminosity
Answer : C) Distance
iv) Dimensions of kinetic energy are same as that of
A) Force B) Acceleration C) Work D) Pressure
Answer : C) Work
v ) Which of the following is not a fundamental unit?
A) cm B) kg C) centigrade D) volt
Answer : D) volt
2) Answer the following questions
Q2-ii ) What are the dimensions of the quantity l root l/g, l being the length and g the acceleration dur to gravity.
Q3-ix) An object is falling freely under the gravitational force. It's velocity after travelling a distance h is v. If v depends upon the gravitational acceleration g and distance, prove with dimensional analysis that v = k underroot gh where k is a constant.
Q3- xvi) The diameter of a sphere is 2.14 cm. Calculate the volume of sphere to the correct number of significant figures.
More questions coming soon.
ch-1
Units and Measurements : Excercise Solutions
EXERCISE-
1. Choose the correct option.
i) [L¹M¹T-²] is the dimensional formula for
A) Velocity B) Acceleration C) Force D) Work
Answer : C) Force
ii) The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of it area is
A) 1% B) 1/2% C) 2% D) None of the Above
Answer: C) 2%
iii) Light year is a unit of
A) Time B) Mass C) Distance D) Luminosity
Answer : C) Distance
iv) Dimensions of kinetic energy are same as that of
A) Force B) Acceleration C) Work D) Pressure
Answer : C) Work
v ) Which of the following is not a fundamental unit?
A) cm B) kg C) centigrade D) volt
Answer : D) volt
2) Answer the following questions
Q2-ii ) What are the dimensions of the quantity l root l/g, l being the length and g the acceleration dur to gravity.
Q3-ix) An object is falling freely under the gravitational force. It's velocity after travelling a distance h is v. If v depends upon the gravitational acceleration g and distance, prove with dimensional analysis that v = k underroot gh where k is a constant.
Q3- xvi) The diameter of a sphere is 2.14 cm. Calculate the volume of sphere to the correct number of significant figures.
More questions coming soon.
Comments
Post a Comment