Question

convex lens and different and concave lens​

Answer 1

Answer:

Key Difference Convex and Concave Lens. ... In the convex lens, the curve is outward facing, whereas, in the concave lens, the curve faces inward. When the light rays pass through the convex lens, it converges the light rays and focuses on one point

Answer 2

Explanation:

the properties of ionic compound (i) melting point (ii) conductivity (iii) solubility (b) carbon form only covalent compounds not ionic why? (3+2)