6ne one???
A point source of light S is placed at a distance 10cm infront of the centre of a mirror of width 20cm suspended vertically on a wall.An insect walks with a speed 10cm/s infront of the mirror along a line parallel to the mirror at a didstance of 20 m from it as shown in the figure.Find the maximum during which the insect can see the image of the source S in the mirror.
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UP 0 DOWN 0 0 4
4 Answers
1
insect cannot see the image beyond the extremities indicated in diagram.find angles indicated and then the distance between A and B, then find time
1it iz 30 cm
use similar Δ property of sides proprtion in the smallest 1 and largest 1
in this figure