1.

2. An object of height 2 cm is placed at a distance of15 cm from a concave mirror of focal length 10 cmDraw a scale diagram to locate the image. From thediagram, find the length of the image formed.

Answer»

Height of object = 2cm

Object distance = 15cm

Focal length = 10cm

1/f = 1/v +1/u

-1/10 = -1/15 +1/v

1/v = -3 +2 /30

v = -30 cm

Height of image/Height of object = -v /u

Height of image / 2 = 30/-15

Height of image = -4cm

Nature - Real and inverted

Position - 30 cm from concave mirror

Size = 4 cm



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