Compute the radius of curvature of the cornea

Reference no: EM13321573

To fit a contact lens to a patient's eye, a keratometer can be used to measure the curvature of the cornea-the front surface of the eye. This instrument places an illuminated object of known size at a known distance p from the cornea, which then reflects some light from the object, forming an image of it. The magnification M of the image is measured by using a small viewing telescope that allows a comparison of the image formed by the cornea with a second calibrated image projected into the field of view by a prism arrangement. Determine the radius of curvature of the cornea when p =26 cm and M =0.0130.

Reference no: EM13321573

Questions Cloud

Change the nature of the multilateral trading system : Regional and Preferential Trade Agreements have the potential to change the nature of the multilateral trading system

What total length of wire is required to make this solenoid : A solenoid is designed to prodcue a 2.78*10^-2 T magnetic field near its center. It has a radious of 1.4cm, What total length of wire is required to make this solenoid

Engel curves always slope upward : Suppose that an individual allocates his or her entire budget between two goods, food and clothing. Can both goods be inferior? Explain.

Explain the rate of formation of ammonia : N2 +3 H2 - 2NH3 Suppose that at a particular moment during the reaction, molecular hydrogen is racting at the rate of 0.074M/s. what is the rate of formation of ammonia

Compute the radius of curvature of the cornea : To fit a contact lens to a patient's eye, a keratometer can be used to measure the curvature of the cornea-the front surface of the eye. Determine the radius of curvature of the cornea

How to calculate the ratio of ch3nh2 to ch3nh3cl : Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH = 10.10 [CH3NH2]/[CH3NH3CL] = ? I know that the answer is 0.34 but is not wright to write it in this way in mastering chemistry and they are errors in the submission

What is the speed of the second particle : Two particles are created in a high-energy accelerator and move off in opposite directions. What is the speed of the second particle, as measured in the laboratory

How to calculate the theoretical yield for the reaction : Calculate the theoretical yield for the reaction if .80g of succinic anhydride and excess aniline was used. Whis is the percent yield if a student isolates 0.9g of succinimide

What is the wavelength of em radiation : What is the wavelength of EM radiation that ejects 2.00-eV electrons from calcium metal, given that the binding energy is 2.71 eV

User Account

All Pages