Question

A point sized image is obtained in front of a concave mirror. Guess the position of the object​

Answer 1

Answer:The magnification is given as,

m=−

u

v

​

2

1

​

=−

u

v

​

v

1

​

=−

u

2

​

The mirror formula is given as,

v

1

​

+

u

1

​

=

f

1

​

−

u

2

​

+

u

1

​

=

20

1

​

u=−20cm

Thus, the position of the object is −20cm.

Explanation:

Answer 2

the object is placed at infinity.  

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