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

Pesudo force, Ask questidefination and explanation of pesudo force on #Mini...

Ask questidefination and explanation of pesudo force on #Minimum 100 words accepted#

Electric, The P.D. at the feeder end of a two wire d.c. distributor is 600...

The P.D. at the feeder end of a two wire d.c. distributor is 600 volts. Two loads are connected to the distributor at distances of 600 feet and 1000 feet from the feeder end and t

What is avalanche breakdown, What is Avalanche Breakdown Minority ca...

What is Avalanche Breakdown Minority carriers, under reverse biased conditions, flowing through  the  junction  acquires  a  kinetic  energy  that increases  with  increase

Describe your view about piezoelectric generator, Describe your view about ...

Describe your view about piezoelectric generator. Piezoelectric generator: A slab of piezoelectric crystal is acquired and using that parallel plate capacitor is made. After

Determine the working of n- channel JFET, Determine the working of N- Chann...

Determine the working of N- Channel JFET In N-channel JFET, two p regions are connected with each other (internally or externally) and are called gate (G). Ohmic contacts are

What are quarter wave plates, What are a quarter wave plates? Get the expre...

What are a quarter wave plates? Get the expressions for its thickness in terms of refractive indices for E-ray, O-ray and wavelength?

Rectillinear motion, An elevator is stopped at the ground floor. It starts ...

An elevator is stopped at the ground floor. It starts moving upwards at constant acceleration for 5 seconds. It then keeps a constant speed for 35 seconds. Finally, it slows down

Bulky group present at axial position , Why bulky group present at axial po...

Why bulky group present at axial position of chair or boat conformer is less stable compared to equitorial position?  Ans) Let the bulky group has a large mass M. suppose it is

Define grating element, Q. Define: grating element. The combined width ...

Q. Define: grating element. The combined width of a slit as well as a ruling in a plane diffraction grating is called as a grating element.

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