optical, Physics

Assignment Help:
Ask question #Minimum 4.
Determine the strength of a lens needed to allow a person with a far-sighted eye with a near point of Pnar= 2.0 m (near point means the closest distance for which an object can be imaged on the retina) to read comfortably at 0.25 m?

5. a) If an emmetrope has an accommodation of 53 D, what is the person''s near point?

b) If a former emmetrope wears reading glasses of +2D to read at a distance of 25 cm, what is the near point without glasses?


Get Answer words accepted#

Related Discussions:- optical

Dielectric material: ceramics, Ceramics are materials made by higher temper...

Ceramics are materials made by higher temperature firing treatment of natural clay and certain inorganic matters. Structurally ceramics are crystal bonded together. Other materials

Project , formula used in thermoelectric thermometer experiment

formula used in thermoelectric thermometer experiment

Describe critical angle, The measurements taken in Ramdesns eyepiece more w...

The measurements taken in Ramdesns eyepiece more worthy (reliable) than Huygens eyepiece. Why? Describe critical angle. show its relationship with refractive index.

Explain ultraviolet radiation, A metal has a work function of 4.80 eV. ...

A metal has a work function of 4.80 eV. Will ultraviolet radiation with a wave length of 385 nm be able to eject a photoelectron from the metal?

Write a mathematical expression for refractive index, Write a mathematical ...

Write a mathematical expression for refractive index of the material of a prism in terms of its angle. Is the mathematical expression true for all positions of the prism?

Time dilation, a spacecraft is moving relative to the earth. an observer fi...

a spacecraft is moving relative to the earth. an observer finds that according to her clock 3601 seconds elapse between 1pm and 2pm on the spacecrafts clock. what is the spacecraft

Inductors, Inductors: Coils which are used for their opposition to curr...

Inductors: Coils which are used for their opposition to current change in a circuit are known as inductors or chokes. CONSTRUCTION Inductors with an air core have small

Explain the first law of thermodynamics, Explain the first law of thermodyn...

Explain the first law of thermodynamics. Reduce its mathematical form, give the first law equation for different processes. What are its limitations?

Applications of neodymium-yttrium-aluminium-garnet laser, What are the appl...

What are the applications of Neodymium-Yttrium-Aluminium-Garnet Laser? Applications of Neodymium-Yttrium-Aluminium-Garnet Laser: a. Used into materials processing as like we

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd