NCERT Class 12 Chemistry book has two parts, i.e., Chemistry Part I and Part II. Students have to study both parts of the Class 12 Chemistry NCERT book to prepare for their board exams. Students can download the Class 12 Chemistry NCERT book PDF in English, Hindi, and Urdu medium from the table below. The NCERT textbooks … Read more
Multiple Choice Question (MCQs) is a process that tests student’s knowledge about comprehensive content and objectives and gives an insight into student ability. If the nucleus of a lead atom were broken into two identical nuclei, the total mass of theresultant nuclei would be:A. the same as beforeB. greater than beforeC. less than beforeD. converted … Read more
Download free MCQ Fundamental of Physics MCQ: QUARKS, LEPTONS, AND THE BIG BANG Which of the following particles is stable?A. NeutronB. ProtonC. PionD. MuonE. Kaonans: B The stability of the proton is predicted by the laws of conservation of energy and conservationof:A. momentumB. angular momentumC. baryon numberD. lepton numberE. strangenessans: C When a kaon decays … Read more
Multiple Choice Question (MCQs) is a process that tests student’s knowledge about comprehensive content and objectives and gives an insight into student ability. A particle moves along the x axis from xi to xf . Of the following values of the initial and finalcoordinates, which results in the displacement with the largest magnitude?A. xi = … Read more
Chapter 1: MEASUREMENT The SI standard of time is based on:A. the daily rotation of the earthB. the frequency of light emitted by Kr86C. the yearly revolution of the earth about the sunD. a precision pendulum clockE. none of theseAns: E A nanosecond is:A. 109 sB. 10−9 sC. 10−10 sD. 10−10 sE. 10−12Ans: B The … Read more