Class 9 Exam  >  Class 9 Questions  >  Measure the length, breadth and thickness of ... Start Learning for Free
Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.?
Most Upvoted Answer
Measure the length, breadth and thickness of a glass block using a met...
Measurement of a Glass Block and Calculation of its Density


Measurement of Length, Breadth and Thickness


  • Length: 15.2 cm, 15.3 cm, 15.4 cm (mean = 15.3 cm)

  • Breadth: 8.7 cm, 8.8 cm, 8.9 cm (mean = 8.8 cm)

  • Thickness: 2.1 cm, 2.2 cm, 2.3 cm (mean = 2.2 cm)



Calculation of Volume

Volume = Length x Breadth x Thickness

Volume = 15.3 cm x 8.8 cm x 2.2 cm

Volume = 298.752 cm³

Volume = 0.298752 m³

Measurement of Mass

Mass = 1200 g

Mass = 1.2 kg

Calculation of Density

Density (cgs unit) = Mass / Volume

Density (cgs unit) = 1.2 kg / 298.752 cm³

Density (cgs unit) = 0.004015 g/cm³

Density (SI unit) = Mass / Volume

Density (SI unit) = 1.2 kg / 0.298752 m³

Density (SI unit) = 4005.035 kg/m³

Relation between the Two Density Units

1 g/cm³ = 1000 kg/m³

Therefore, 0.004015 g/cm³ = 4.015 kg/m³
Community Answer
Measure the length, breadth and thickness of a glass block using a met...
Answer:
0.48
Explanation:
Given that,
Length of the block l=(5.12+0.01)cm
Breadth of the block b=(10.15+0.01) cm
Thickness of the block t=(5.28+0.01) cm
We know that,
Relative error in volume of cuboid
V
dV
=
l
dl
+
b
db
+
t
dt
V
dV
=
5.12
0.01
+
10.15
0.01
+
5.28
0.01
V
dV
=
512
1
+
1015
1
+
528
1
Now, the percentage error in volume
V
ΔV
�100=0.48
%ΔV=0.48%
Hence, the percentage error in volume is 0.48.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
Explore Courses for Class 9 exam

Similar Class 9 Doubts

Top Courses for Class 9

Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.?
Question Description
Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.?.
Solutions for Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? in English & in Hindi are available as part of our courses for Class 9. Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? defined & explained in the simplest way possible. Besides giving the explanation of Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.?, a detailed solution for Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? has been provided alongside types of Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? theory, EduRev gives you an ample number of questions to practice Measure the length, breadth and thickness of a glass block using a metre rule (each reading correct to a mm), taking the mean of three readings in each case. Calculate the volume of the block in cm3 and m3 . Determine the mass (not weight) of the block using any convenient balance in g and kg. Calculate the density of glass in cgs and SI units using mass and volume in the respective units. Obtain the relation between the two density units.? tests, examples and also practice Class 9 tests.
Explore Courses for Class 9 exam

Top Courses for Class 9

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev