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

Thermo electric current., When the two junctions of a thermo couple are mai...

When the two junctions of a thermo couple are maintained at dissimilar temperatures, then a light begins going through the loop called as thermo electric current.

#Inductance balanced delta connected load, how to you calculate the inducat...

how to you calculate the inducatnce on a balanced delta circuit?

Explain force, FORCE: "Force is that agency which causes a body to alte...

FORCE: "Force is that agency which causes a body to alter its state of motion or rest". It is denoted by F ?

Magnetic properties, calculate the frequency of radiation which must be inc...

calculate the frequency of radiation which must be incident on a substance placed in magnetic field strength so that the electron can absorb energy

Roche limit, Roche limit: The position about a massive body where the ...

Roche limit: The position about a massive body where the tidal forces because of the gravity of the primary equivalent or exceed the surface gravity of a particular satellite.

Unit and dimension of displacement, UNIT AND DIMENSION OF DISPLACEMENT. ...

UNIT AND DIMENSION OF DISPLACEMENT.  The S1-unit of displacement is metre (m).  The dimension of displacement is [L] or [M o LT o ]

Car and truck in head on collision, Car and Truck in Head on Collision ...

Car and Truck in Head on Collision Inelastic Collision : Collisions among objects are governed through laws of energy and momentum. Although a collision occurs inside an isol

Capacitor-start-capacitor-run single-phase motor, Capacitor-start-capacitor...

Capacitor-start-capacitor-run single-phase motor : In this case, two capacitors are used one for preliminary and other for running purpose as shown. The capacitor used for prelimin

Manufacturing of double-sided printed circuit board, Double sided printed c...

Double sided printed circuit boards are used where a complex circuit with more number of ICs is to be accommodated. For preparing double sided PCB, base material has copper-clad on

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