Answer:
- 9.62 cm
Explanation:
location of image, v = + 34 cm
location of object, u = - 7.5 cm
Let f be the focal length of the mirror.
Use mirror formula,
1 / f = 1 / v + 1 / u
1 / f = 1 / 34 - 1 / 7.5
1 / f = (7.5 - 34) / (7.5 x 34)
f = - 9.62 cm
As the focal length is negative, so the mirror is concave in nature.