A concave lens of focal length 20cm form an image 1/2 the...
A concave lens of focal length 20cm form an image 1/2 the size of the object. The object distance is
100cm
\( \frac{100}{q} \)
60cm
\( \frac{60}{7} \)
None of the above
Correct answer is C
No explanation has been provided for this answer.