April 18, 2014

Homework Help: Physics Please COULD SOMEONE HELP ME ASAP PLZ

Posted by Laila on Wednesday, March 27, 2013 at 10:14pm.

When an object is placed 55.0cm from a certain converging lens, it forms a real image. When the object is moved to 45.0cm from the lens, the image moves 6.00 cm farther from the lens.

Find the focal length of this lens?

Please someone help me out I tried so many times i keep getting wrong answer.
PHYSICS PLEASE HELP ASAP - bobpursley, Wednesday, March 27, 2013 at 4:45pm


but f before the move is f after the move, so


solve for di. Looks like fun.

then, after you get di, go for f from the lens equation
PHYSICS PLEASE HELP ASAP - Laila, Wednesday, March 27, 2013 at 6:48pm
I found this equation 5380di^2+600di+33000=0 and when i solve i got an imaginary number I had a hard time solving it so could you please help me out I actually redid it and got 3.15 for di i don't know if thats right or not an how to go from there cuz i keep gettind it wrong
No one has answered this question yet.

Answer this Question

First Name:
School Subject:

Related Questions

r.e - Please help i have to do an acrostic poem about renember i need it for ...
ASAP - can someone please make up an address and a phone number that i can use ...
Physics Help me Someone plz - If a galaxy is traveling away from us at 2.0% of ...
SCIENCE 8 PLEASE HELP!!!!!! (ASAP!) - HW - Bring in a weather map plz
the big idea of energy KS3 - what is the big idea of energy? To A. Einstein, it ...
pscychology - Could someone pretty plz plz plz help me...What are the 2 biggest ...
PHYSICSS.. someone help plz. - A football is kicked at 15 m/s with an angle of ...
local and state gov. - someone plz i really need help plz i cant find it in my ...
FRENCH WORK ASAP - please please someone check my work I don't understand it ...
physics - What is the weight in newtons of a 250 g package of cereal? need ...