What is the size of the image on her retina

Reference no: EM13319244

A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 68.80 diopters, and the lens-to-retina distance is 1.461 cm.

(a) How far (in meters) is the blackboard from her eyes?

(b) If the writing on the blackboard is 5.70 cm high, what is the size of the image on her retina (including the proper algebraic sign)?

Reference no: EM13319244

Questions Cloud

Explain the gas has particles with the slowest average speed : which gas has particles with the slowest average speed at 28 C? 1- Carbon dioxide 2- Sulfur trixoide 3- Sulfur hexafoluride 4- Hydrogen choride 5- Helium

Which company has the bigger incentive for careful : The makers of Tylenol pain reliever do a lot of advertising and have very loyal customers. In contrast, the makers of generic acetaminophen do no advertising, and their customers shop only for the lowest price

What is the resistance of the nichrome wire : Nichrome is a nickel chromium allot commonly used in heating elements. suppose you have a coil of nichrome wire that is 25.0 m long, what is the resistance of the Nichrome wire

What is the yield to maturity on these bonds : What is the yield to maturity on these bonds and what is their expected effective annual return - determine what is the required return on the equity fund

What is the size of the image on her retina : A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 68.80 diopters, If the writing on the blackboard is 5.70 cm high, what is the size of the image on her retina

How would this apple-a-day law affect the demand and : Suppose that the president proposes a new law aimed at reducing heath care costs: All Americans are to be required to eat one apple daily.

Explain the average atomic mass of a bromine atom : (Calculate using the given masses.) lighter isotope amu heavier isotope amu (c) Determine the average molecular mass of a Br2 molecule. amu (d) Determine the average atomic mass of a bromine atom. amu (e) Calculate the abundances of the two isotop..

How many cubic yards of soil must be excavated from pit : A 1000 cubic yard embankment is to be built using soil from a borrow pit. The properties of embankment and the borrow pit soil are given below: Embankment: Dry unit weight = 115 pcf; Water content = 15%

What is the trip distance according to the traveler : Alpha Centauri, a star close to our solar system, is about 4.3 light years away. Suppose a spaceship traveled this distance at a constant speed of .90c relative to Earth. What is the trip distance according to the traveler

User Account

All Pages