Question

Study each of the diagram given below carefully and follow the instructions in the given questions.

Answer 1

u=2F=2(10)=20cm

f=10cm

1/u+1/v=1/f

1/20+1/v=1/10

1/v=1/10-1/20=(2-1)/20=1/20

Therefore, v=20cm

After that, IDK mate