A matchbox containing an unknown object is placed on a thin sheet… - Vidyadip

MCQ

A matchbox containing an unknown object is placed on a thin sheet of glass in the experimental set-up shown in the figure.

When the bar magnet moves, it is able to drag the match box along. What is most likely to be found in the matchbox?

A
Marble.
B
Toothpick.
C
Ten-cent coin.
✓
Steel ball bearing.

✓

Answer

Correct option: D.

Steel ball bearing.

The match box must contain some magnetic material i.e., steel ball bearing.

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