If the radius of curvature of a concave mirror is 20 cm ,its focal length is:
10 cm
20 cm
30 cm
Answers
Answered by
5
Answer:
10 cm is the correct answer.
Answered by
2
Answer:
ur ans is ⬇️⬇️⬇️⬇️⬇️⬇️⬇️
30 CM..............
...........
fõllõw mê ❤️❤️❤️❤️❤️❤️❤️
Similar questions