Measurements Physics Chapter 1 Class 11

Physics Book FSC CH 1 CLASS 11 Class 12 HSSC Physics INTRODUCTION.

In SI units, the unit of Candela is used for the measurement of:

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International System of Units
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1 light year distance is the:

PMC Practice 5
Physics
Measurements
Physical Quantities
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Which experimental technique reduces the systematic error of the quantity being investigated?

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Errors and Uncertainties
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The different magnitudes of same physical quantities are measured by comparing them to:

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Which one of the following physical quantity does not the dimension of force per unit area

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Which set of the prefixes gives values in increasing order?

UHS 2014
Physics
Measurements
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Which of the following is NOT a unit of energy?

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Physics
Work, Power & Energy
Measurements
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When the dimensions of both sides of an equation are equal, then the equation is said to be:

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Physics
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Which of the following is not a base unit in the SI system?

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Identify the dimensions of area, velocity and acceleration respectively: (where L= Length, T=Time)

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What is 1 radian in degrees approximately

PMC Sample 3
Physics
Measurements
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In the SI system of units, the fundamental units of mass, time and length are ____, _____ and ______ respectively.

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Measurements
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1 light year distance is

PMC Practice 27
Physics
Measurements
Physical Quantities
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The velocity of a particle is related to time according to the equation

V= ct3. The dimensions of constant are _______.

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The length and width of a rectangular plate are measured to be 15.3 mm and 12.50 mm. Find the area of the plate up to an appropriate number of significant figures.

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Measurements
Significant Figures
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The dimensional formula for change in momentum is same as that for:

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Dimensions of Physical Quantities
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How many cubic nanometers, nm3, are in a cubic micrometer, μm3?

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A quantity 𝑥 is to be determined from the equation, 𝑥 = 𝑃 – 𝑄. 𝑃 is measured as (1.27 ± 0.02) 𝑚 and 𝑄 is measured as (0.83 ± 0.01) 𝑚. What is the percentage uncertainty in 𝑥 to one significant figure?

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Assessment of Total Uncertainty
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The number L = 8.0 x 104cm can be expressed as ________.

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Which of the following is not a base unit in the SI system?

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Measurements
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Name the quantity which can be measured by using the base unit kgm2s-3.

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If ‘A’ is fundamental dimension of ampere then the dimension of magnetic field strength is:

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Magnetism and Electromagnetic Induction
Measurements
Magnetic Flux and Flux Density
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The dimensional formula for change in momentum is same as that for:

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The unit of temperature in base unit is:

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Determine the significant figures in 0.0085:

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Percentage uncertainty in length and width of a rectangle is 2% and 3%. The total uncertainty in the area of that rectangle is?

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Electric charge on an object is measured as 5 microcoulombs. How the value of this charge can be expressed in terms of base units:

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1 light year distance is the:

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Physics
Measurements
Physical Quantities
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Which of the following is dimensionless quantity?

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Force is a derived quantity, its derived unit can be expressed in terms of the base units as:

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The dimensions of angular velocity (ω) is:

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Measurements
Dimensions of Physical Quantities
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Which of the following is not a S.I. base quantity.

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Measurements
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The unit of temperature in base unit is:

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The dimension of angular momentum is:

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Which of the following is a supplementary physical quantity?

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The dimensions of volume and acceleration (respectively) are:

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Dimensions of Physical Quantities
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The dimensions of acceleration are:

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Force is a derived quantity, its derived unit can be expressed in terms of the base units as:

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The final answer of the expression is:

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The frequency of vibration of the string is given by the equation given below. (p is the number of segments in the string and l is the length of the string).
The dimensional formula for m will be:

PMC Practice 4
Physics
Measurements
Dimensions of Physical Quantities
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The unit of velocity is:

PMC Sample 2
Physics
Measurements
Physical Quantities
International System of Units
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Molar mass of water is:

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Measurements
Precision and Accuracy
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A value for the acceleration of free fall on earth is given as (10+-2) m s-2. Which statement is correct?

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How many significant figures are there in 0.4793?

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The diameter of a wire is measured by using a micrometer screw gauge with least count of 0.01 mm. Which of the following readings will be correct?

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Measurements
Significant Figures
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The base units of Young’s Modulus are:

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Which of the following is a dimensionless quantity?

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In an experiment the dimensions of a rectangular plate is measured with a meter rule (accurate to +- 0.1 cm). If the the length of the plate is measured 16.3 cm, the number of significant figures will be

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A metal sphere of radius r is dropped into a tank of water. As it sink at speed v, it experience a drag force F given by F= krv, where k is a constant: What are the SI base units of k?

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In the SI system of units, the fundamental units of length, mass, and time are ____, _____ and respectively:

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Vector is quantity which

PMC Practice 26
Physics
Measurements
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The dimensions of pressure is:

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