Question

plz ans the que. in given image​

Answer 1

Answer:

Lens formula

Explanation:

1 / F = 1 / v + 1 / u

1 / 25 = 1 / v + 1 /-30

1 / v = 1 / 25 + 1 / 30

1 / v = 25 + 30 / 25 × 30

1 / v = 55 / 750

v = 750 / 55 = 150 / 11 cm