Question

a)An object is placed 27cm infront of a concave mirror of focal length 18cm.Draw a ray diagram
to show the formation of a sharp focussed image (only ray diagram required, don't write
characteristics)(2)​

Answer 1

Answer:

Answer is option no. A

So, u=−27cm

Concave mirror have negative focal length.

f=−18cm

Putting the values in (1),

v1+−271=−181

We get , v=−54cm

Also,

Magnification = h1h2=u−v

7.0h2=−−27−54

h2=−14.0cm

Image will be real and inverted and will be of size 14 cm