1.What is nutrition? Ans:The process of obtaining nutrients from the environment i.e. in take of food and then its digestion in the body. 2.What are the types of nutrition? Ans:Autotrophic(self sufficient...
What is focal length? Ans: the distance between the pole and focal point. What is the relationship between the radius of curvature and focal length? Ans: R=2f What is myopia? When a person can see...
Questions: Solution: Q.18 Q.19 Answer = 32 In radius = 4 Let tangents fro A be p, tangents from B be q and tangents from C be r. So, AB+BC-AC = 8. q+q = 8, q = 4. Same...