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

Define current density, Q. Define: current density. Give its unit. The ...

Q. Define: current density. Give its unit. The amount of charge passing per unit time through unit area taken perpendicular to the direction of flow of charge at that point is

What is the electric field strength, Two parallel plates having a p.d. of 2...

Two parallel plates having a p.d. of 200V among them are spaced 0.8mm apart. What is the electric field strength? Find also the flux density when the dielectric among the p

Helium-filled toy balloons , To an order of magnitude, how many helium-fill...

To an order of magnitude, how many helium-filled toy balloons would be needed to lift you off the ground? Helium is an irreplaceable resource so make a theoretical solution rather

What is energy bands, Normal 0 false false false EN-IN ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Light.., why is the colour of sky blue

why is the colour of sky blue

Find average distance of an electron in an atom, The average distance of an...

The average distance of an electron in an atom from its nucleus is of the order of: (1) 10 6 m (2) 10 -6 m (3) 10 -10 m (4)10 -15 m Ans: (3) 10 -10 m

What are the consequences of dispersion, What are the consequences of dispe...

What are the consequences of dispersion? The main familiar result of dispersion is the splitting up of the composite white light within its constituent colours as into a rainbo

The most probable radius finding the electron he+ is, The most probable ra...

The most probable radius (in pm) for finding the electron He + is: (1) 0.0    (2) 52.9    (3) 26.5                (4) 105.8 Ans:  (c)26.5

Ferrits, Detail information about ferrits also current research on ferrits

Detail information about ferrits also current research on ferrits

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