Tag: college physics

  • Physics Preparatory Test for Quarterly, Class XII, –II

    Physics Preparatory Test for Quarterly, Class XII, –II

    Physics preparatory tests for PUC, ISc, class XII in the CBSE, ICSE (CISCE), State boards. Subject: Physics             Test: Preparatory test — II. Pre-Quarterly. Class: PUC — II (also good for ISC — II) date: 25 the June 2013. Time: 1.5 hours. Total marks: 50 Instructions. — Numerical problems solved without writing the…

  • Class XII, ICSE exam questions, Physics, Updated Version 2

    Question 6 [2+3+2] Obtain an expression for the Nuclear Size of an atom by solving for distance of closest approach (r) which is also known as Impact Parameter (say l). Use an incoming alpha-particle of mass mα and charge q that’s deflected by the presence of a nucleus of atomic number Z to obtain l.…

  • Class XII, CBSE exam questions, Physics

    Electrostatics 6. State how density of electric lines of force is related to the Electric Field Vector intensity E. Also mention another three properties of the lines of forces. 7. Write the vector expression for Coulomb’s law and state 3 forces that are conservative forces by nature. 8. What happens to the charge on a…

  • Class XII, ICSE exam questions, Physics.

    Question 1 (a) In an electric dipole, how is the direction of the dipole vector defined? (b) What’s the Electric Potential of a Dipole Vector in the vertical direction to it? (c) Say if this is correct or incorrect: “Between an alpha-particle and a proton the alpha particle has more electrostatics potential energy in an…