Physical Measurements | MCQs
اسکیلر اور ویکٹر کی مقدار پر مشتمل جوڑا کیا ہے
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A. Electromagnetic force and force.
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B. Current density and current.
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C. Impulse and angular momentum.
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D. Work and frequency.
Explanation
Electromagnetic force is a scalar quantity.
Force is defined as the product of mass and acceleration and force is a vector quantity.
This is the pair in which one physical quantity is scalar and the other is a vector.
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A. scalar
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B. vector
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C. longitudinal
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D. none
Explanation
Electric current is a scalar quantity.
but it possesses magnitude and direction
ND23-9-2023
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A. Thermodynamic scale
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B. Centigrade scale
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C. Fahrenheit scale
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D. Celsius scale
Explanation
The temperature scale that is independent of the nature of the working substance is the Thermodynamic scale (Kelvin scale).
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A. Kelvin
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B. None of these
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C. Joules
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D. Kilogram
Explanation
Joule is a derived unit of energy, not a base unit.
Kelvin (temperature), Kilogram (mass), and Ampere (current) are SI base units.
بیس مقدار کی ایک مثال _____ ہے؟
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A. Length
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B. Area
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C. Volume
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D. None of these
Explanation
Length is a base quantity in the International System of Units (SI), with the unit meter (m).
Volume and Area are derived quantities, calculated using base quantities like length.
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