A lens is formed from a plastic material that has an index of refraction of 1.59 . If the radius of curvature of one surface is 1.15 m and the radius of curvature of the other surface is 1.80 m , use the lensmaker's equation to calculate the magnitude of the focal length | f | and the power | P | of the lens.

a) 5.39 m

b) 0.18 m^-1

Explanation:

The focal length of this kind of optical system is given by:

you replace the values of the parameters in order to find the focal length:

hence, the magnitude of the focal length is 5.39m

The power of the lens is:

the power of the lens is 0.18 m^-1

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles