Five balls numbered 1 to 5 are suspended using separate threads. Pairs – McqOptions

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1.	Five balls numbered 1 to 5 are suspended using separate threads. Pairs (1, 2), (2, 4) and (4, 1) show electrostatic attraction, while pair (2, 3) and (4, 5) show repulsion. Therefore ball 1 must be [NCERT 1980; MP PMT 2003]
A.	Positively charged
B.	Negatively charged
C.	Neutral
D.	Made of metal
Answer» D. Made of metal

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