20 20 cricket worldcup

In Young's double slit experiment, the intensity at a point is 75% of maximum intensity. What is the smallest distance of this point from the central fringe? Given d = 0.1mm, D = 1m and l = 600 n..

Question: The average speed of a car which covers half the distance with a speed of 20 m/s and other half with a speed of 30 m/s in equal intervals of time is _________. 1. 25 m/s 2. 0 m/s 3. 24 m/s 4. 2.4 m/s Answer: ..

Question: The body cavity of arthropoda is 1. pseudocoel 2. coelom 3. haemocoel 4. acoelom Answer: ..

Question: The point where crossing over of chromatids takes place is ___. 1. chiasma 2. kinetochore 3. centromere 4. chromomere Answer: ..

Question: Induced breeding can be exploited to increase the production of 1. camels 2. horses 3. fish 4. cows Answer: ..

Question: For any substance the temperature remains same during the change of state due to ___________. 1. loss of heat 2. latent heat 3. less supply of heat 4. lattice energy Answer: ..

Question: The end of a long bone is connected to another bone by ____________. 1. ligament 2. tendon 3. cartilage 4. muscle Answer: ..

Question: An object of mass 1 kg has potential energy of 1 joule relative to the ground when it is at a height of _______. 1. 0.102 m 2. 1 m 3. 9.8 m 4. 32 m Answer: ..

Question: In the reaction: , the white precipitate seen is due to ______. 1. ZnCl 2 2. BaSO 4 3. BaCl 2 4. ZnSO 4 Answer: ..