Ask your own question, for FREE!
Mathematics 23 Online
OpenStudy (anonymous):

I'm confuse please help me , how i can find the focal length of a convex lens using two needles and we don't have screen we have to form the image in convex lens

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!