Question

A dentist uses a concave mirror of focal length
3 cm to observe a deayed tooth of theight 0.5 cm
He places the minor at a distance
of from
the tooth
1cm from​

Answer 1

Since it is a concave mirror,

So u( distance of object from mirror) = -2cm,

Focal length (f) = -3cm

Since 1/f = 1/u + 1/v

=) 1/-3 = 1/-2 + 1/v

=) - 1/3 + 1/2 = 1/v

=) 1/6 = 1/v

=) v (distance of image from mirror) = 6cm

Since magnification = - v/u

= - 6/-2

= 3

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Answer 2

Answer:

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