Does the focal length of a lens depend on the fluid in which it is immersed? What about the focal length of a spherical mirror? Explain.

Question

anonymous · Answer

@AkashdeepDeb

akashdeepdeb · Answer

The focal length of a lens does change in in a fluid depending upon its optical density.
It can be found out by lensmaker's equation, because there is a difference in Optical densities. 

If it is about reflection, then No. It does not change.

anonymous · Answer

what is the lensmakers equation

anonymous · Answer

so for a sperical mirror the focal length will not change

akashdeepdeb · Answer

http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/lenmak.html And No, it doesn't.

anonymous · Answer

So it changes for a lens but not a mirror, do you know why? aha

anonymous · Answer

its okay, thank you =)

akashdeepdeb · Answer

No, I actually don't, truth be told. I googled it up!

anonymous · Answer

its okay thank you =D