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Which of the following is a characteristic of a scalar quantity?
Has magnitude only
Has direction only
Has both magnitude and direction
None of these
Has magnitude only
A scalar quantity is a physical quantity that possesses only magnitude and no specific direction. Examples of scalar quantities include mass, speed, distance, time, energy, and temperature.
A scalar quantity is a physical quantity that possesses only magnitude and no specific direction. Examples of scalar quantities include mass, speed, distance, time, energy, and temperature.
Fundamental physical quantities and their standard international units form the core measurement framework tested in general science sections of technical recruitment examinations like RRB JE.
Scalar quantities are completely specified by a numerical value and an appropriate unit.
Scalar quantities obey the ordinary rules of algebra for mathematical operations.
Common examples include speed, distance, mass, temperature, and electric current.
Vector quantities possess both magnitude and direction and follow vector addition laws, such as velocity, acceleration, and force.
Option C defines a vector quantity rather than a scalar quantity.
Distance is a scalar quantity, whereas displacement is its vector counterpart.
A is correct тАФ A scalar quantity is characterized by having magnitude only without any directional orientation.
Examinees should memorize standard examples of both scalar and vector quantities, as railway and civil service exams frequently test conceptual differentiations between terms like speed versus velocity or distance versus displacement.
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