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3 years ago

A measurement must include both a number and a(n)

Physics

2 answers:

maw [93]3 years ago

3 0

<span>A measurement must include both a number and an unit. </span>

dimulka [17.4K]3 years ago

3 0

The correct answer to the question is Unit i.e a measurement must include both a number and a unit.

EXPLANATION:

During the measurement of any physical quantity, unit plays a crucial role.

The magnitude of a measurement contains two parts known as numerical part and a unit.

This can be understood by an example.

If we say that a body is travelling 5, it gives no idea. Similarly, if we say that the box was pulled to distance metre, it has also no sense.

But, if we say that the body was pulled to 5 metre, it gives an idea about the distance travelled by the body in a specific time interval.

Hence, the magnitude of a measurement is written as -

m = nu.

Here, n is the numerical part and u is the unit.

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3 years ago

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Answer:

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Explanation:

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Case 1:

When a meta slab of thickness, a, is added between the plates of the parallel plate capacitor , the effective separation between the plates becomes d+a

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Case 2:

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Equating (1) and (2)

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3 years ago

The spherical side mirror on a car is convex and has a radius of curvature of 25 cm. Another car is following, 20 m behind the m

svlad2 [7]

Answer:

(D) 0.99 cm

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