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

Types of bond: vander waals bond, VANDER WAALS BOND: A fourth type of b...

VANDER WAALS BOND: A fourth type of bonding, which does not involve a transfer or sharing of electrons, is known as the Vander walls bond. It forms in atoms or molecules that b

Dynamics, Piles of snow on slippery roofs can become dangerous projectiles ...

Piles of snow on slippery roofs can become dangerous projectiles as they melt. Consider a chunk of snow at the ridge of a roof with a pitch of 27. As the snow begins to melt, the c

Determine the magnitude of the force in direct current, The weightless trus...

The weightless truss shown below supports loads at point A & B and is fastened to the supports at C & E.  The value of F1 in kN is given in P13 and the value of F2 in kN is given i

Vectors, The resultant of two forces 3P and 2P is R. If the first force is ...

The resultant of two forces 3P and 2P is R. If the first force is doubled then the resultant is also doubled. then the angle between the two forces us. plz xplain with the solution

Explain about the term step index fibre, Explain about the term step index ...

Explain about the term step index fibre. Step index fibre: Into a step index fibre, the refractive index keeps constant throughout the core and decreases at the core-claddin

Define supersonic speed , An object moving with a speed better than the spe...

An object moving with a speed better than the speed of sound is called to be move with a supersonic speed.

What is the cause of brownian motion, What is the cause of Brownian motion?...

What is the cause of Brownian motion? Molecules in a gas move constantly, freely, randomly, in all directions and at high speeds. They are able to do so because the intermolecu

Rate of effusion of nitrogen gas, How can we calculate the rate of effusion...

How can we calculate the rate of effusion of nitrogen gas from a cylinder. and how much time it will take??

Determine the weight of the car , A car of mass 1.35 x 10 3 kg sits on a l...

A car of mass 1.35 x 10 3 kg sits on a large piston that has a surface area of 1.23 m 2 . The large piston is linked to a small piston of area 144 cm 2 . What is the weight

Internal combustion engine, Truck has a 100 kW engine power and 40 % effici...

Truck has a 100 kW engine power and 40 % efficiency . As oil burn in an hour if q = 4.4 to force multiplication 10 to 7 ?

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