Find what is the power of the needed corrective lens

Assignment Help Physics
Reference no: EM13543074

The far point of an eye is 255 cm. A corrective lens is to be used to allow this eye to focus clearly on objects a great distance away. What should be the focal length of this lens? What is the power of the needed corrective lens in diopters?

Reference no: EM13543074

Questions Cloud

Determine the acceleration of the hockey puck : A hockey player uses her hockey stick to exert a force of 6.81 N on a stationary hockey puck. What is the acceleration of the hockey puck
Explain how many milliliters of isopropanol in solution : A solution is known to be 23 percent by volume rubbing alcohol (isopropanol) how many milliliters of isopropanol would be in 250 ml of solution
Calculate the density of the life jacket : An 30-kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 2.8x10^(-2) m^3 and is completely submerged under the water. What is the density of the life jacket
How to compute the energy required and wavelength : Calculate the energy required and wavelength required to move an electron from the n=1 to n =1x10-12. Explain why this transition is not feasible
Find what is the power of the needed corrective lens : The far point of an eye is 255 cm. A corrective lens is to be used to allow this eye to focus clearly on objects a great distance away. What is the power of the needed corrective lens in diopters
Define the molar heat of vaporization of ethanol : The molar heat of vaporization of ethanol is 39.3 kj/mol, and the boiling point of ethanol is 78.3 C. Calculate delta S for the vaporization of .3 mol ethanol.
Find the rms current in the input coil of the transformer : The power brick for a laptop computer has a power rating of 45 W. What is the rms current in the input coil of the transformer
Explain the organic product of the reaction of cyclohexanone : Give the structure of the organic product of the reaction of cyclohexanone with the following.(give the names of the products).
Explain structure of the organic product of the reaction : Give the structure of the organic product of the reaction of phenylacetaldehyde with the following.(give the names of the products).

Reviews

Write a Review

Physics Questions & Answers

  How far apart would the plates have to be

Certain sharks can detect an electric field as weak as 1.1 mu V/m . To grasp how weak this field is, how far apart would the plates have to be

  Hat is the intensity of light leaving the final sheet

Two polaroid sheets are arranged so that their transmission axes are at 90 degrees to each other. What is the intensity of light leaving the final sheet

  Find the electric potential energy of this system of charges

Two point charges q1 = 4.0 ?C and q2 = -8.0 ?C are placed along the x-axis at x1 = 0 m and x2 = 0.20 m, find the electric potential energy of this system of charges

  What is the ideal mechanical advantage of a ramp

Two loudspeakers are placed 3-m apart. They emit 498 Hz sounds, in phase. A microphone is placed 3.2m distant from a point midway between the two speakers, where an intensity highest is recorded.

  Find the speed of the cars after collision

A coffee filter of mass 1.1 grams dropped from a height of 1 m reaches the ground with a speed of 0.5 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? Start from the Energy Principle and select as system..

  Determine and sketch all the external forces acting

Determine and sketch all the external forces acting on the chair. Because the chair can be represented as a point particle of mass , draw the forces with their tails centered on the black dot in the middle of the chair.

  What is the mechanical power delivered by the constant force

A person with perfect pitch sits on the bus bench listening to the 442 Hz horn of an approaching car. If the person detects a frequency of 479 Hz, how fast is the car moving.

  What is the angular speed of the object

You spin an object around so that it moves in a horizontal circle with 2.00 m radius at a speed of 2.5m/s, What is the angular speed of the object

  How tall is the mirror

A 1.56m tall student stands before a vertical mirror. She can just see her whole body, from head to toe. How tall is the mirror

  What time did the sprinter achieve for the race

Two adjacent sources each emit a frequency of 800Hz in air where the velocity of sound is 340 m/s. How much farther back would source 1 have to be moved as a result an observer in front of the sources would hear no sound.

  What is the total number of revolutions the particle makes

A 0.347 kg particle slides around a horizontal track. The track has a smooth, vertical outer wall forming a circle with a radius of 1.59 m. What is the total number of revolutions the particle makes before stopping

  Find the angular velocity of the cockroach-disk system

A cockroach of mass m lies on the rim of a uniform disk of mass 8m that can rotate freely about its center like a merry-go-round. at first the cockroach and disk rotate together with an angular velocity of 0.200 rad/s. Then the cockroach walks half..

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