Observe the picture of analytical balance, which is used to determine the mass of a substance very accurately in the laboratory. Here, A and B are termed as respectively.

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A → Rider carrier, B → Beam release

A → Beam release, B → Rider carrier

A → Beam, B → Knob release

A → Fractional weight beam,B → Pointer

answer is A.

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Detailed Solution

A→Rider carrier, B → Beam release

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