plz solve the numerical and also explain it.

Asked by tangocharliee | 24th Nov, 2009, 11:03: AM

Expert Answer:

The greatest distance over which he can see the image of the light source in the mirror is 3d.

Taking the image of  the point object as the vertex, two triangles may be drawn with the length of the mirror and length of the person as bases. These two triangles will be similar to each other and using similarity principle,

Greatest distance / mirror length = 3L / L = 3

or, Greatest distance = 3 mirror length = 3d

Answered by  | 25th Nov, 2009, 12:16: AM

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