Question

plz help me guys it's physics​

Answer 1

Answer:

v=-20

Explanation:

formula for concave mirror is

1/v+1/U=1/F

here U=20 but put -20 because it is in left side of the mirror

F=-10

solving them you will get v=-20

here minus sign indicate that it is in left side of the mirror

/******hint when object is placed in centre of corvature then it's image will always form at same position