Question

The focal length of the concave mirror in the experimental set up, shown
below approximately equals
1. 12 cm
2. 10 cm
3. 13cm
4. 8 cm
​

Answer 1

Answer:

8 cm focal length of the concave mirror in the experimental set up

Answer 2

may be fourth option is correct

if correct plz mark it as a brainlist answer plz plz