Question

A person needs a lens of power -4.5 D for correction of her vision.
a) What kind of defect in vision is he suffering from?
b) What is the focal length of the corrective lens?
c) What is the nature of the corrective lens?

Answer 1

Answer:

hey mate here is your answer

Explanation:

a) he is suffering from myopia

b) WKT,  f=1/p

therefore, given that p= -4.5

f=1/-4.5

for your ease multiply both numerator and denominator by 10

we get , => f=10/-45

=> -0.2m

c) diverging lens

please mark it as brainielist answer