Wave motion-lenses, Physics

Assignment Help:

You are given 3 lenses l1,l2,l3 each of focal length 20 an object at 40cm in front of l1.the final real image is formed at focus i ofl3,find separation between l1,l2,l3 ?

Ans) between l1&l2 its 60

& between l2&l3 it can be any value...........

for l3 to form image at i, the object must be at infinity, and for that, image formed

by l1 must be at the focus of l2,

and also image formed by l1 is 40 cm ahead of l1, i.e., the focus of l2(20 cm)

so, distance between l1 and l2 is 40+20=60 cm........


Related Discussions:- Wave motion-lenses

Ecotourism, why does ecotourism preserve biodiversity

why does ecotourism preserve biodiversity

What are the advantages of fibre optic communication, What are the advantag...

What are the advantages of fibre optic communication? Advantages of fibre optic communication are as follows: a. Enormous band width Coaxial cable transmission of 500 M

X-Ray, Can you please explain me about working mechanism of X-Ray mechaine

Can you please explain me about working mechanism of X-Ray mechaine

Final image is formed at the near point of the eye, A compound microscope w...

A compound microscope with an objective of 1.0 cm focal length and an eye-piece of 2.0 cm focal length has a tube length of 20 cm. Measure the magnifying power of the microscope, i

Newtons laws skydiving, Newtons Laws Skydiving Assume the motion of the...

Newtons Laws Skydiving Assume the motion of the skydiver below. As the skydiver falls and he encounters the force of air resistance. An amount of air resistance is dependent up

Light reflection, what are the advantage and disadvantages of light reflect...

what are the advantage and disadvantages of light reflections

What is the universal law of universal gravitation, What is the universal l...

What is the universal law of universal gravitation? Statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the

High resistive materials, High resistive materials: The materials which...

High resistive materials: The materials which have their resistivity 10 -8 to 10 -6 ohm-m come under this category. These materials are used for making resistance elements fo

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