The process in which gaseous state directly changes to solid without changes to liquid. Ans: Deposition. Evaporation is a _______phenomenon. Ans: Surface phenomenon. The process in which liquid changes...
Question: In a triangle ABC, median AM is drawn such that it divides ∠BAC in the ratio 1:2. AM is extended to D such that ∠ABD = 90. Given AC=12 Find AD. Solution:
Introduction: Anything that occupies space and has mass is called matter. Matter can be divided into two types. Pure substance: It consists single types of particles which are identical and same characteristics. Mixtures:...