SSC
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many variables may be tested legitimately in any one experiment?
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as many as a physicist can handle
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three
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one
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five
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Explanation:
Detailed explanation-1: -Any experiment involves the use of two kinds of variables: independent and dependent variables.
Detailed explanation-2: -Having one or more experimental groups allows researchers to vary different levels of an experimental variable (or variables) and then compare the effects of these changes against a control group.
Detailed explanation-3: -Mass defect is usually given the symbol m (to represent an observable change in mass), and the mass of an atom is usually given the symbol M (or Mr for relative atomic mass).
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