Physics, 21.04.2020 18:56 Maxwell2539
The lens-makers’ equation applies to a lens immersed in a liquid if n in the equation is replaced by n2/n1. Here n2 refers to the index of refraction of the lens material and n1 is that of the medium surrounding the lens. (a) A certain lens has focal length 79.0 cm in air and index of refraction 1.55. Find its focal length in water. (b) A certain mirror has focal length 79.0 cm in air. Find its focal length in water.
Answers: 2
![\frac{1}{f} = (n -1) [\frac{1}{R_1} - \frac{1}{R_2} ]](/tpl/images/0615/2728/7d9ee.png)
is the focal length 
is the index of refraction 
are the radius of curvature of sphere 1 and 2 of the lens![\frac{1}{f_{air}} = (n-1) [\frac{1}{R_1} - \frac{1}{R_2} ]](/tpl/images/0615/2728/05fbc.png)
![\frac{1}{f_{water}} = [\frac{n_2}{n_1} - 1 ] [\frac{1}{R_1} - \frac{1}{R_2} ]](/tpl/images/0615/2728/8672d.png)
![\frac{f_water}{f_{air}} = \frac{n_2 -1}{[\frac{n_2}{n_1} - 1] }](/tpl/images/0615/2728/42a8b.png)
= 79.0 cm
Another question on Physics
Physics, 22.06.2019 00:00
(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.
Answers: 2
Physics, 22.06.2019 12:30
When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)
Answers: 2
Physics, 22.06.2019 14:50
Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two
Answers: 1
Physics, 22.06.2019 15:30
1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?
Answers: 1
You know the right answer?
The lens-makers’ equation applies to a lens immersed in a liquid if n in the equation is replaced by...
Questions
Mathematics, 04.12.2020 07:40
Geography, 04.12.2020 07:40
Chemistry, 04.12.2020 07:40
Mathematics, 04.12.2020 07:40
Mathematics, 04.12.2020 07:40
History, 04.12.2020 07:40
Mathematics, 04.12.2020 07:40
