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This mock test of Test: Significant Figures And Dimensions for Class 11 helps you for every Class 11 entrance exam.
This contains 20 Multiple Choice Questions for Class 11 Test: Significant Figures And Dimensions (mcq) to study with solutions a complete question bank.
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QUESTION: 1

Significant figures depend on ________ number of significant figures in given data.

Solution:

QUESTION: 2

Dimensions cannot be used to

Solution:

QUESTION: 3

Find the option with 3 significant figures.

Solution:

0.0268 have three significant figures where as 2.608 cm, 26.08 mm and 2.068 cm have four significant figures.

QUESTION: 4

Which of the following physical quantities has different dimensions?

Solution:

QUESTION: 5

If radian correction is not considered in specific heat measurement. The measured value of specific heat will be

Solution:

QUESTION: 6

Which of the following physical quantity is dimensionless

Solution:

QUESTION: 7

The number of significant figures in the distance of one light year , 9.4605 × 10^{15} m is

Solution:

QUESTION: 8

The numbers of significant figures in 1.84 x10^{-27} kg are:

Solution:

QUESTION: 9

The multiplication of 10.610 with 0.210 upto correct number of significant figure is

Solution:

QUESTION: 10

Numbers of significant figures in the volume of a cube of side 6.103 m are:

Solution:

QUESTION: 11

Magnitude of force F experienced by a certain object moving with speed v is given by F = Kv^{3}, where K is a constant. The dimensions of K are

Solution:

QUESTION: 12

The order of magnitude of a number expressed in scientific notation is

Solution:

QUESTION: 13

The numbers of significant figures in 9.1 x10^{-31} kg are:

Solution:

As the power of 10 is irrelevant to the determination of significant figures hence, the numbers of significant figures are 2 (9 and 1).

QUESTION: 14

Which of the quantity is dimensionless?

Solution:

QUESTION: 15

Three students measured length of a needle with meter rod and recorded as :

(i) 0.2145m

(ii) 0.21m

(iii) 0.214m

Which one is correct record?

Solution:

QUESTION: 16

After decimal point, number is less than 5 which is to be neglected,then retained number

Solution:

QUESTION: 17

Mary bought a tank whose dimensions are 5.6cm, 8.2cm and 12.8 cm. The volume of water (in cm³) that can be stored in tank (correct up to four significant figures) is

Solution:

QUESTION: 18

Three physical quantity having dimensions [ML^{-1}T^{-2}] are.

Solution:

Pressure = Force/Area = ML^{1}T^{-2}/ L^{2} = [M L^{-1} T^{-2}]

Stress = Force/Area = ML^{1}T^{-2}/ L^{2} = [ML^{-1}T^{-2}]

Coefficient of elasticity = Stress/strain = [ML^{-1}T^{-2}]

QUESTION: 19

Find the option with 5 significant figures

Solution:

QUESTION: 20

A dimensionless quantity

Solution:

A dimensionless quantity has no dimensions but it may or may not have units. Two very common examples of dimensionless quantities are refractive index which does not have any units and angle which has units (degrees, radians).

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