Two thin lenses of power + 4D and –2D are in contact.

power 4dA convex lens of power + 6D is placed in contact with a concave lens of power – 4D. What is the nature and focal length of the combination. see full answer. Start JEE NEET FoundationPower dsp 4ch value_acoustics VA 15.4D Daya output: 4x 1500watt @8ohm, 4x 2000watt @4ohm Bridge 2x 3800watt @8ohm Input: analog, aes ebu, dante Output