ICS Part 1 Physics English Medium Chapter 1 Online Short Questions Test with Answers

Online Short Questions For Chapter 1 "ICS Part 1 Physics Chapter 1 Short Questions Test "

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Physics - ICS Part 1 Physics Chapter 1 Short Questions Test

Question # 1

Define significant figures.

  • Ans 1: In any measurement, the accurately Known digits and the first doubtful digit are called the significant figures. For example, The number of significant figures in the measurement 02.59 are 3.
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Prepare Complete Set Wise Questions For Chapter 1 "ICS Part 1 Physics Chapter 1 Short Questions Test "

ICS Part 1 Physics Chapter 1 Short Questions Test - Set 1

Question # 1

Define significant figures.

  • Ans 1: In any measurement, the accurately Known digits and the first doubtful digit are called the significant figures. For example, The number of significant figures in the measurement 02.59 are 3.
Submit

ICS Part 1 Physics Chapter 1 Short Questions Test - Set 2

Question # 1

What is meant by coexistances.

  • Ans 1: Living with other human beigns in peace and harmony mutual peace and lvoe is claled coexistence
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 3

Question # 1

Define light year. How many meters are there in one light year?
[ Speed of light = 3x108ms-1)

  • Ans 1: Alight year is the distance light travels in one year.
    Since
    S = vt
    or S = vt
    S= (3x108ms-1)(365x24x60x60 s)
    S= 9.46x 1015m
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 4

Question # 1

How can you define term wave?

  • Ans 1: A wave is disturbance in the medium which causes the particles of medium to undergovibratory motion
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 5

Question # 1

Define meter and Kelvin.

  • Ans 1: Meter: One meter is the distance travelled by light in vacuum during a time of 1 /299, 792,458 seconds.
    Kelvin: One kelvin is the fraction 1/273.16 of the thermodynamic temperature the triple point of water.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 6

Question # 1

what is diffraction?

  • Ans 1: the bending or spreading of waves around the sharp edges or obstacles is called diffraction.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 7

Question # 1

Explain dimension of physics quantities ?

  • Ans 1: The power to which the fundamental units of first system must be raised to give the unit of a physics quantities are called dimensions of that quantity
    Explanation:The dimension represents the nature of a physics quantity. It tells us that how a quantities is related to the base units .It is represented by capital letters in a square brackets For example
    1. Dimension of mass length time are respectively written as [M] , [L]
    Use of dimensions.
    1. The dimension are used for checking the correctness of an equation or formula
    2. The dimension are used for deriving of certain formula for a physics quantity.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 8

Question # 1

Differentiate between the precision and accuracy.

  • Ans 1: Precision: A measurement which has less absolute uncertainty is called precise measurement. The precision of a measurement is determined by the instrument being used.Absolute uncertainty , in effect, is equal to the least count of measuring instrument.
    Accuracy: is the one which has less fractional or percentage error. Accuracy measures,how close a measured value is to the actual value.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 9

Question # 1

What is importance of bivalent formation?.

  • Ans 1: Due to bivalent formation of homologous chromosomes,the non sister chromatids exchange their segment during the crossing over resulting in new recombination.
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ICS Part 1 Physics Chapter 1 Short Questions Test - Set 10

Question # 1

What are three fundamental frontiers of fundamental science?

  • Ans 1: The three fundamental frontiers of fundamental science are:
    1. The world of extremely large bodies.
    2. The world of extremely small objects.
    3. The world of middle sized objects. OR The world of complex matter.
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