First Year Physics Chapter 1 Online MCQ Test for 1st Year Physics Chapter 1 (Measurements)


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Physics ICS Part 1 Chapter 1 Online Test

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Question # 1

Identify whcih pari fromt he following does not have identical dimension.

Question # 2

SI unit is built up by how many kinds of units

Question # 3

The percentage uncertainty in measurement of mass and velocity are 2% and 3% , the maxium uncertainty in the measurement of kinetic energy is.

Question # 4

The least count of aninstrument determines

Question # 5

SI Unit of angular velocity are.

Question # 6

The dimensions of weight are.

Question # 7

The answer to the mathematical division (45.2 x 6.0) in appropriate numebr of significant figures is.

Question # 8

SI Unit of intensity of light is.

Question # 9

The ratio of the dimensions of force and eenrgy is.

Question # 10

The unit of pressure in base unti is.

Question # 11

The unit of pressure is.

Question # 12

The Dimension of freqeuncy is

Question # 13

The Dimension of Power is.

Question # 14

Dimensions of viscosity are.

Question # 15

The most ractive metals of the periodic table are.

Question # 16

Uncertainty may occur due to 

Question # 17

The sum 12 kg +2.02 kg+5.1 kg accoridng to appropriate precision is

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FSc Part 1 Physics (New Book) Important MCQ's

Sr.# Question Answer
1

When rounded off upto three significnat figures the value 6.835is written as.
A.

6.83

B.

6.84

C.

6.80

D.

6.85
2

For total acssessment of uncertinty in the final result obtained by multiplication and division
A.

Absolut euncetainties are added

B.

Uncertainties are multiplied

C.

%age uncertainties are added

D.

Erros are added
3

The dimensionally correct equation of E is.
A.

mc2

B.

mc

C.

m/c

D.

m2c2
4

The Dimension of freqeuncy is
A.

[T-1]

B.

[LT]

C.

[MLT]

D.

[LT-1]
5

The length of  steel pipe is in between 0.7 m to 0.8 m. Identify from the following. the appropriate instruemnt to be used for an accuracy of 0.001 m.
A.

A micrometer screw gauge

B.

A metre rule

C.

A ten meteres measuring tape

D.

A vernier callipers
6

The Dimension of Power is.
A.

[ML2T-2]

B.

[ML2T-3]

C.

[ML2T-1]

D.

[MLT-1]
7

The numebr of significant figures in the measrued mass 2500.0 kg is
A.

Two

B.

Three

C.

Four

D.

Five
8

The number of significant figures of a measureent are define das.
A.

They reflect the accuracy of the observation in a measurement 

B.

They are teh figures which are reasonably reliable

C.

They are the accurately known digits and the first doubtful digit of measurement 

D.

All of the above
9

SI Unit of intensity of light is.
A.

Mole

B.

Candela

C.

Kelvin

D.

Ampere
10 When adding or subtracting physical quantities, the absolute uncertainty in the final result is found by:
A. Multiplying the individual absolute uncertainties.
B. Adding the individual absolute uncertainties.
C. Taking the average of the individual absolute uncertainties.
D. Subtracting the smallest from the largest individual absolute uncertainty.

Test Questions