Question

Convcave mirror of focal length 20 cm is placed 50 cm from a wall how far from the wall an object be placed to from its real image on wall

Answer 1

Answer:Focal length, f = -20cm (concave mirror) Object distance i.e distance of the wall from the mirror, v = -50cm. We have to find v (image distance) By applying mirror's formula. Distance of the object from the wall (x) = 50 – u. X = 50 – 33.3 = 16.7 cm. The object is to be placed at 16.7 cm from the mirror to form its real image on the wall

Answer 2

Answer:

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