Solve my doubt please
Dear student
option a is the answer
Defective near vision, v = -75cm
Now, lens formula for this,
1/v + 1/25 = 1/f
=> 1/(-75) + 1/25 = 1/f
=> 2/75 = 1/f
=> f = 75/2 cm
So, power of the lens, P = 1/f
=> P = (100/(75/2)) D
=> P = 2.667 D
approx 2.67D
Regards