Estimate how far is the blackboard from her eyes

Reference no: EM13497008

A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.56 diopters, and the lens-to-retina distance is 1.864 cm.

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

(b) If the writing on the blackboard is 5.08 cm high, what is the height of the image on her retina?

Reference no: EM13497008

Questions Cloud

Evaluate the work done on the system if the gas is ideal : Find the expression for the reversible pressure-volume work of an isothermal van der Waals gas with a constant number of moles (integrate the expression fully from Vi to Vf) (b) One mole of a gas at 300 K is compressed isothermally and reversibly ..

Find the number of molecules in a volume : In an ultrahigh vacuum system (with typical pressures lower than 10?7 pascal), find the number of molecules in a volume of 1.70 m3

Which of the following best describes the production budget : 061683RR - PLANNING, PERFORMANCE. Last year, the House of Orange had sales of $826,650, net operating income of $81,000, and operating assets of $84,000 at the beginning of the year and $90,000 at the end of the year. What was the company's turnov..

What is the function of the tris registers : What is the function of the TRIS registers and how can the TRIS registers in bank 1 be accessed

Estimate how far is the blackboard from her eyes : A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.56 diopters, How far is the blackboard from her eyes

Evaluate the change in ph of the solution : If 2.00 mL of a 0.40 M NaOH solution is added to 65.0 mL of a buffer solution that contains 0.10 M HCN and 0.10 M NaCN, calculate the change in pH of the solution (i.e. pH[after] - pH[before] ). For HCN, Ka = 4.9 e-10.

Through what angle did the pulley turn while accelerating : Your car's fan belt turns a pulley at 3.00 rev/s . When you step on the gas for 1.25s , the rate increases steadily to 5.60 rev/s. Through what angle did the pulley turn while accelerating

What is the electric field between its plates : A C=35 pF parallel plate cApacitor has plates of area A=402cm^2. What is the electric field between its plates when it is connected across a potential difference of V=14.5 Volts

Calculate how far would it have traveled in a vacuum : A flat sheet of ice (n = 1.309) has a thickness of 2.2 cm. It is on top of a flat sheet of crystalline quartz (n = 1.544) that has a thickness of 1.6 cm. how far (in cm) would it have traveled in a vacuum

User Account

All Pages