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

Physics, what do you understand about phsics

what do you understand about phsics

Straingth of material, the steel end-cap is fitted into grooves cut in the ...

the steel end-cap is fitted into grooves cut in the timber post.the working stresses for the post are 1.8 mpa in shear parallel to the grain and 5.5 mpa in bearing perpendicular to

Evaluate the path of the magnetic field, A straight vertical wire passes by...

A straight vertical wire passes by a wooden table top. The wire carries an upward directed current. Evaluate the path of the magnetic field of the wire at a point on the table top

Kilometers, Your car gets 34.7 mi/gal on a trip. How many kilometers/liter ...

Your car gets 34.7 mi/gal on a trip. How many kilometers/liter did it get?

What are the basic components of lead acid cell, What are the basic compone...

What are the basic components of Lead Acid cell? Ans. Basic components of Lead Acid cells are: a) Positive Plates, which are tubular n shape, prepared by PBO 2 b) Negativ

Describe specific charge, Describe specific charge? Desfine Thomson's exper...

Describe specific charge? Desfine Thomson's experiment to calculate e/m of an electron with relevant theory.

What is intent by the expression constructive interference, In optics what ...

In optics what is intended by the expression "constructive interference." Answer: This is factual for any kind of waves. Any time you have coherent waves of the same kind

What are the electric generators, What are the Electric Generators? An ...

What are the Electric Generators? An electric generator is a situation in which a loop of conducting wire rotates in an area with a magnetic field. During the first half of t

Process of power generation and transmission, explain the process of power ...

explain the process of power generation and transmission?.

Explain the term critical frequency, Explain the term 'critical frequency' ...

Explain the term 'critical frequency' in relation to sky wave propagation of electromagnetic waves. On a particular day, the maximum frequency reflected from the ionosphere is

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