Question 1 What is myopia? State the two causes of myopia? Question 2 With the help of ray diagram, show the eye defect myopia and correction of myopia using a lens? Question 3 What is hypermetropia? State the two causes of hypermetropia? Question 4 With the help of ray diagram, show the eye defect hypermetropia and correction of hypermetropia using a … [Read more...] about Defects of Vision and their Correction
Class 10
Human Eye
Question 1 Describe the working of the human eye with the help of a diagram? Question 2 Explain the function of cornea, iris, pupil, ciliary muscles, eye-lens, retina, optic nerve? Question 3 How does the eye adjust itself to deal with light of varying intensity? Question 4 If you walk from a dark room into sunlight and back again into dark room, how would your pupils … [Read more...] about Human Eye
Nuclear Fusion
Question 1 What is nuclear fusion reaction? Write the equation of the reaction involved? Question 2 Why are very high temperature required for fusion to occur? Question 3 What is the nuclear fuel in the sun? Describe the process by which energy is released in the sun? Question 4 What is the source of energy of the sun and other stars? Question 5 Describe the working … [Read more...] about Nuclear Fusion
Nuclear Fission
Question 1 What are nuclear reactions? Name 2 types of nuclear reactions? Question 2 What is nuclear fission reaction? Write the equation involved? Question 3 Write Einstein's mass-energy equation? Question 4 In nuclear power plant how can we control the rate of fission? Question 5 What is a nuclear reactor? What is the fuel used in nuclear reactor? Question 6 … [Read more...] about Nuclear Fission
Energy from the Sea and Geothermal Energy
Question 1 What is geothermal energy? Question 2 What is the source of heat contained in geothermal energy? Question 3 How geothermal energy is used to generate electricity? Question 4 State few advantages of geothermal energy? Question 5 State few disadvantages of geothermal energy? Question 6 Explain how tidal energy can be used to generate … [Read more...] about Energy from the Sea and Geothermal Energy