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

Magnetism, formula for time period of oscillation of magnet in a vibration ...

formula for time period of oscillation of magnet in a vibration magnetometer

Buoyant Force, I need help with the Fb = F2-F1 formula that used in buoyant...

I need help with the Fb = F2-F1 formula that used in buoyant force

Fraunhofer and fresnel diffraction, Differentiate between Fraunhofer's and ...

Differentiate between Fraunhofer's and Fresnel's type of diffraction?

Heat energy, how heat energy is liberated during respiration?

how heat energy is liberated during respiration?

#speedvelocityacceleration, An object is thrown downward from a 150 cliff s...

An object is thrown downward from a 150 cliff so that it makes an angle of 30 with the horizontal. (a) How fast will it be going when it hits the ground? (b) How long will it take

Motion in one dimension , if joe rides his bicycle in a straigght line for ...

if joe rides his bicycle in a straigght line for 15 min with an average velocity of 12.5 km/h south how far has he ridden

How newton''s ring can be obtained in the laboratory, Q.   Explain how Newt...

Q.   Explain how Newton's ring can be obtained in the laboratory. Why Newton's rings are circular in shape? How the Newton's rings are used to find refractive index of liquid?

Biot-savart law, Biot-Savart law (J.B. Biot, F. Savart) A law defines ...

Biot-Savart law (J.B. Biot, F. Savart) A law defines the contributions to a magnetic field through an electric current. This is analogous to Coulomb's law. Mathematically spec

Discovery of neutron becomes very late because, The discovery of neutron be...

The discovery of neutron becomes very late because: (1)Neutrons are present in nucleus (2)Neutrons are highly unstable particles (3)Neutrons are chargeless (4)Neutrons

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