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

Electricity, help by post offoce box explan rasistance of a wire

help by post offoce box explan rasistance of a wire

The stoplight- 1-dimensional kinematics, The Stoplight- 1-Dimensional Kinem...

The Stoplight- 1-Dimensional Kinematics A blue car moving at a constant speed of 10 m/s passes a red car which is at rest. This occurs at a stoplight the moment in which the li

Explain logarithmic decrement, Explain logarithmic decrement? Evaluate the ...

Explain logarithmic decrement? Evaluate the ratio of nth amplitude with 1st amplitude in case of under damped oscillation.

Electromotive force – emf, ELECTROMOTIVE FORCE – EMF: To make use of el...

ELECTROMOTIVE FORCE – EMF: To make use of electricity by provision of an electric current, the potential different must be maintained. That is, the positive and negative charg

Are fibers optics systems expensive, Are fibers optics systems expensive? ...

Are fibers optics systems expensive? To find out whether a system is expensive one would have to establish a comparison with an option, which in most cases doesn't exist. To co

How greatly does automotive oil weigh, Q. How greatly does automotive oil w...

Q. How greatly does automotive oil weigh? Answer:- As a rough guide engine oil typically weighs about 0.87 kg/litter or about 7.2 pounds per US gallon. Regrettably a rough

Dielectrics, a parallel pate capacitor has two dieletric slabs between the ...

a parallel pate capacitor has two dieletric slabs between the plates with interface normal to E and D.the thickness of each slab is 1cm,area is 100cm2.neglect fringing effects.dete

Write a mathematical expression produced by a thin prism, Write a mathemati...

Write a mathematical expression for deviation produced by a thin prism and illustrate the terms.

What instrument is utilized to measure volume, Q. What instrument is utiliz...

Q. What instrument is utilized to measure volume? Answer:- Liquid volume is measured with graduated cylinders, beakers, measuring cups, spoons and the like. For regular ob

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