• 4,226,644 hits

Subscribe to PlusTwoPhysics via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 4,745 other subscribers

RSS AskPhysics Updates

  • Strike while the iron is hot !
    AskPhysics Blog Feed Dear students, CBSE has given you more time for exams. We have approximately 7 days before the Physics exams. How to use this seven days effectively for a thorough revision is very important. 7-8 days of sleeping is a must. One hour of exercise 1 to 2 hours for break fast lunch […]
  • Dreams come true only for those who do their part
    AskPhysics Blog Feed I was recently narrating the life story of a girl from Dindigul who got married to a police constable at the age of 14. She was not even reached class 10. She became the mother of two kids by the age of 18. During that time she had to accompany her husband […]
    AskPhysics Blog Feed “The Philosophers who worked in search of the Philosophers’ stone and those set themselves dedicated to find the elixir of life”The works of those in search of the Philosopher’s stone didn’t go in vain, They made the beginning. The beginning itself was so wonderful that anyone who got touched by the idea […]
  • Quarks, conservation, entanglement
    AskPhysics Blog Feed Doubt from AskPhysics.comI have heard the following statements-> 1. Quarks always exist in a group of 2 or 3, and can not stand alone. 2. Protons are made up of 2 up quarks, and 1 down quark. 3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For […]
  • Prepare for Physics oral test too during lockdown
    AskPhysics Blog Feed Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was … Prepare for Physics oral test too during lockdown The post Prepare for Physics oral test too during lockdown appeared first on Ask Physics.
  • Theory of Relativity
    AskPhysics Blog Feed The basic concepts of relativity are explained in a very simplified way that are easy to understood by Mr. Vivek Sawhney in this YouTube Video… The video focuses upon the general discussion on Theory of Relativity….What is the theory of Relativity? What is time dilation and length contraction? SUBSCRIBE to the YouTube […]
  • A numerical problem from motion in 1 Dimension
    AskPhysics Blog Feed A boy plays with a ball on a field surrounded by a fence which has a height of 2.5m . He kicks the ball vertically up from a height of 0.4m with a speed of 14 ms−1. (a) What is the maximum height of the ball above the fence? (b) What is […]







General Instructions:

  • All questions are compulsary
  • There are 30 questions in total. Questions 1 to 8 carry 1 mark each. Questions 9 to 18 carry 2 marks each. Questions 19 to 27 carry 3 marks each and questions 28 to 30 carry 5 marks each.
  • Use of calculators is not permitted.


******Choices are avoided as this is a question paper meant for practice ***********


  1. Write the ratio of AU and Ao.
  2. A truck and a car moving with the same kinetic energy are stopped by applying the same retarding force. Which will stop at a smaller distance?
  3. In which motion linear momentum changes but kinetic energy does not?
  4. What is the time period of simple pendulum at the centre of earth?
  5. Write the SI unit and dimensional formula for Gravitational constant.
  6. Why is it difficult to stop bleeding from cut in human body at high altitudes?
  7. When air is blown between two balls suspended close to each other, they are attracted towards each other. Why?
  8. If pressure of a gas at constant temperature is increased four times, how the velocity of sound in the gas will be affected?
  9. A train moves away from a stationary observer with speed 34 m/s. The train sounds a whistle and its frequency registered by observer is f1. If the train speed is reduced to 17 m/s, the frequency registered is f2. If the speed of sound is 340 m/s, then find f1/f2.
  10. Show that impulse of a force is equal to the change in momentum produced by the force.
  11. Derive expression for particle velocity during simple harmonic motion.
  12. Write the dimension of a and b in the relation F = ax + bt2
  13. A particle is projected with velocity u making an angle with the vertical. Write the formula for (a) time of flight (b) horizontal range.
  14. Two bodies A and B having masses 5 kg and 6 kg respectively have equal momenta. Find their kinetic energies.
  15. Find the moment of inertia of a sphere about a tangent to the sphere, given moment of inertia of the sphere about any of its diameter is 2/5 MR2, where M is the mass of the sphere and R its radius.
  16. Define Cp and Cv. Write the relation between them.
  17. Find the degrees of freedom for (a) diatomic gas (b) linear triatomic molecule
  18. An incident wave is represented by y = 20 sin (2x – 4t). Write the expression for the reflected wave (i) from rigid boundary (ii) from an open boundary.
  19. Derive the eqution s = ut + 1/2 at2
  20. Three identical blocks of masses m =2kg connected by strings are drawn by a force 10.2 N on a frictionless surface. Find the tension in the string between the second and the third blocks.
  21. Define elastic collission. Prove that bodies of identical masses exchange their velocities after head on collision.
  22. Define centre of mass. The distance between the centres of carbon and oxygen atoms in the carbon monoxide gas molecule is 1.13 Ao. Locate the centre of mass of the gas molecule relative to the carbon atom.
  23. Define escape velocity. Obtain an expression for escape velocity of the body from the surface of earth
  24. Eight rain drops of radius 1 mm each falling down with terminal velocity of 5 cm /s combine to form a bigger drop. Find the terminal velocity of the bigger drop.
  25. Define isothermal process. Derive an expression for the work done in an isothermal process.
  26. Derive an expression for the pressure exerted by an ideal gas using the assumptions of kinetic theory of gases.
  27. Write the formula for kinetic energy, potential energy and total energy of a body executing SHM. Prove that the total energy is directly proportional to square of amplitude and frequency.
  28. (i)Define centripetal acceleration. Derive an expression for the centripetal acceleration of a body moving with uniform speed v along a circular path of radius r
    (ii) In projectile, a particle is projected such that magnitude of velocity at the topmost point is half of the magnitude of initial velocity. Find the angle of projection
  29. (i)State and prove law of conservation of linear momentum (ii) A machine gun has a mass 20 kg. It fires 35 g bullets at the rate of 4 bullets per second with the speed of 400 m/s. What force must be applied to the gun to keep it in position?
  30. (i) Derive capillary ascent formula. (ii) Draw stress strain curve for a metallic wire, when stretched up to the breaking point. Also label each point in the graph.



This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: