Question

An ant starts from A and reaches F. In doing so it travels along path that is S shaped. If each side of the transversed path is same then Find the ratio of distance covered by the ant to the displacement.​

Answer 1

Answer:

Solution

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Correct option is

A

0.5cms

−1

Let us move the mirror to the point Q. Ant is covering a distance of PQ(=60cm) in 2×60s. ∠PQM=30

0

.

From similar triangle we get, ∠MQ

1

P

1

=30

0

Since ∠PQP

1

=60

0

, we get PQ=P

1

Q

1

=PP

1

=60cm

Now, PP

1

=60cm and QQ

1

=0cm.

So, the rate at which the distance between ant and its image change is

2×60

60

cm/s=0.5cm/s

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Answer 2

Answer:

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