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Chapter 1: Problem 49

becquerel is a \(\ldots \ldots \ldots \ldots \ldots .\) unit and its symbol is \(\ldots \ldots \ldots \ldots \ldots\) (a) supplementary, Bq (b) fundamental, Bq (c) derived, Bq (d) derived, Bv

Short Answer

Expert verified
The Becquerel unit is a \(derived\) unit and its symbol is \(Bq\).

Step by step solution

01

Option (a) Supplementary, Bq

Supplementary units are typically required to define additional dimensions, such as angles, on top of the basic units like length, mass, and time. Becquerel is a unit of radioactivity, measuring the activity of a radioactive source, so it doesn't fit in the supplementary unit category.
02

Option (b) Fundamental, Bq

Fundamental units are the essential building blocks for all other units and dimensions in physics. These fundamental quantities include time, length, mass, etc. The Becquerel is not one of these fundamental quantities, as it can be represented by the dimensions of other fundamental units.
03

Option (c) Derived, Bq

Derived units come from combinations of fundamental units and can be used to appropriately describe quantities that are not covered by fundamental units. Becquerel measures radioactivity in terms of disintegrations per second, which can be expressed in terms of the fundamental units. With the symbol matching as Bq, this seems like a promising option.
04

Option (d) Derived, Bv

The only difference from option (c) is the symbol provided. However, the symbol given is incorrect. The symbol for Becquerel is Bq, not Bv. #Conclusion#: After analyzing the options, the Becquerel unit is a \(derived\) unit and its symbol is \(Bq\). Thus, the correct answer is: (c) derived, Bq.

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