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HC Verma Solutions – Concepts of Physics Part 1 – Chapter 1 Objective II HC Verma Solutions – Concepts of Physics Part 1 Chapter 1: Introduction to Physics – Objective II Q1. The dimensions ML⁻¹T⁻² may correspond to: (a) work done by a force (b) linear momentum (c) pressure (d) energy per unit volume Answer: (c), (d) Solution: Work done/energy = Force × distance = [MLT⁻²][L] = [ML²T⁻²] → does not match. Linear momentum = mass × velocity = [M][LT⁻¹] = [MLT⁻¹] → does not match. Pressure = Force / Area = [MLT⁻²] / [L²] = [ML⁻¹T⁻²] → correct. Energy per unit volume = [ML²T⁻²] / [L³] = [ML⁻¹T⁻²] → correct. Q2. Choose the correct statement(s): (a) A dimensionally correct equation may be correct. (b) A dimensionally correct equation may be incorrect. (c) A dimensionally incorrect equation may be correct. (d) A dimensionally incorrect equation may be incorrect. Answer: (a), (b...

HC Verma Solutions – Concepts of Physics Part 1 – Chapter 1 HC Verma Solutions – Concepts of Physics Part 1 Chapter 1: Introduction to Physics – Objective I Q1. Which of the following sets cannot enter into the list of fundamental quantities in any system of units? (a) length, mass, and velocity (b) length, time and velocity (c) mass, time and velocity (d) length, time and mass Answer: (b) Solution: Fundamental quantities must be independent of each other. In option (b), velocity depends on length and time ( v = L/T ), so it cannot be chosen as a fundamental quantity. Also, without mass the system is incomplete. Hence option (b) is invalid. Q2. A physical quantity is written as n·u, where u is the unit and n is the numerical value. If the same quantity is expressed in different units, then (a) n ∝ u (b) n ∝ u² (c) n ∝ √u (d) n ∝ 1/u Answer: (d) Solution: For any physical quantity, the prod...

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today PIL  in supreme court TO POSTPONE NEET 2020 JEE 2020     The parents association which moved the Supreme Court against the University Grants Commission guidelines, is now planning to file a Public Interest Litigation (PIL) demanding postponement of NEET and JEE Main 2020 to December. The National Eligibility cum Entrance Test (NEET) is for medicine and the Joint Entrance Examination (JEE) Main, for engineering. Both exams are scheduled in September; the association wants it postponed to December. The association is likely to file the...

  vinay sharma big b of physics renowned physics faculty and moviation guru for student of NEET and JEE our youtube channel for more detail jee main 2016 detail In pursuance of Ministry of Human Resource Development, Government of India, Notification, the Joint Entrance Examination (Main) - 2016 will be conducted by the JEE Apex Board for admission to Undergraduate Engineering Programmes in NITs, IIITs and other Centrally Funded Technical Institutions etc. For admission to NITs, Centrally Funded Technical Institutions (CFTIs) like IIITs etc. and other participating Institutions, the merit/rank list shall be prepared based on 40% weightage to school Boards marks in class 12th or equivalent examination and 60% weightage to JEE(Main). The weightage to school Board/Equivalent examination marks shall be considered only after normalization. Information Bulletin : The detailed information bulletin containing details of examination, syllabus, eligibility criteria...