Question

what is Lenz's law
answer to me I mark as you are brainliest​

Answer 1

1/f = 1/v -1/u

is the lens makers formula

Answer 2

Lenz's law, named after the physicist Emil Lenz who formulated it in 1834, states that the direction of the electric current which is induced in a conductor by a changing magnetic field is such that the magnetic field created by the induced current opposes the initial changing magnetic field.

hope it helps you dear