What power (in diopters) of corrective contact lens is required to correct the vision of a myopic eye whose far point is at 170 cm?
What will be an ideal response?
-0.59 diopters
You might also like to view...
Each subsidiary page at a website should provide a link back to the website's home page.
Answer the following statement true (T) or false (F)
The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000 N. Assume the pistons each have negligible mass
(a) Determine the force that must be exerted by the fluid in the lift on the small piston. (b) Determine the pressure applied to the fluid in the lift.
A radioactive isotope decays by ?- emission with a half-life of 1.0 min. During the first 1.0 min, a particular sample emits 1000 ?- particles. During the next 1.0 min, the number of ?- particles this sample will emit will be closest to
A) 250. B) 500. C) 1000. D) 1500. E) 2000.
The type of heat transfer that occurs between the radiator of a car and the atmosphere, when the car is in motion, is principally
A) convective. B) conductive. C) radiative. D) countercurrent. E) evaporation.