A physical quantity can have:

Magnitude

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Unit

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Shape

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Solution

The correct options are
A Magnitude
B Unit
A physical quantity can be measured. It can have the following characteristics:

Magnitude: Every physical quantity has some magnitude represented by a number. If a boy travels a distance of 5 km, then 5 is the magnitude.

Unit: A physical quantity may have some unit (ex speed has unit km/hr). However, unitless physical quantites also exist.

Direction: A physical quantity may have direction (ex: Displacement).

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