Class 11 Physics Important Questions

Class 11 physics important questions

In this article, we are going to provide you important questions of class 11 physics syllabus.

NCERT Class 11 Physics is very important resource for students preparing for XI Exams. Here we have covered questions from very important topics are covered by NCERT Exemplar Class 11. You will get an idea about the type of questions and method to answer in your class 11th examination.

Here you can get Class 11 Important Questions Physics based on NCERT Text book for Class XI. Physics Class 11 Important Questions are very helpful to score high marks in exams. Here we have covered Important Questions on all topics for Class 11 Physics subject.

We suggest you to go through CBSE Important Questions for Class 11 Physics and solve them before you see their Answers. Practicing these question will help you a lot in your school exam.

NCERT Solution – Class 11 Physics

All Important Questions for Class 11 Physics given here are as per latest syllabus & guidelines of Central Board of Secondary Education, India (CBSE). Also these CBSE Important Questions for Class 11 are based on new CBSE CCE Pattern.

NCERT Important Questions for Class 11 are must do question suggested by NCERT. Solving NCERT Important Questions for Class 11 Physics can be referred by every students who has NCERT Text Books in their Syllabus.

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Important Questions Class 11 Physics

  1. State theorem on parallel axis and perpendicular axis. The moment of inertia of a circular disc about a diameter is ¼ MR2, where M is mass and R is radius of the disc. Using this relation, find the moment of inertia about an axis passing through its centre and perpendicular to its
  2. Explain what is meant by the coefficient of linear, superficial and cubical expansion of a solid. Give their units and find the relationship between them
  3. State Stefan’s law. Show , how Newton’s law of cooling follows from it for small temperature difference between a body and its surroundings.
  1. Read each statement below carefully and state , with reasons, if it is true or false:
    • The modulus of elasticity of a rubber is greater than that of
    • The stretching of a coil spring is determined by its shear
    • When a material is under tensile stress, the restoring forces are caused by interatomic attraction; while under compressional stress, the restoring force are due to interatomic
  2. Derive Newton’s formula for the velocity of sound in air. What correction did Laplace apply to it?
  3. What are standing waves? Explain the formation of standing waves by applying superposition principal to the wave functions of incident and reflected waves in case of a string fixed at both ends. Discuss graphically the various modes of
  4. State and prove the principal of conservation of linear momentum. Apply this law to explain, why?
    • A gun recoils, when fired;
    • A rocket goes up when fired and
    • The boat moves away, when a man jump from it to the
  5. A ball moving with a momentum of 15 kg m/s strikes against the wall at an angle of 300 and is reflected back with the same momentum at the same angle. Calculate the impulse.
  6. Define angle of Draw a neat labeled diagram showing different forces and their component acting on a vehicle moving on a banked road.
  7. Jagat and Ram are working in the same company .Jagat has noticed that ram is suffering from Ram is not aware of this, when Jagat asks him to go for checkup, ram refused. He gets convinced now, when herealized it is very important to get checkup done once a year.
  • What according to you are values shown by Jagat in helping
  • A hospital uses an ultrasound scanner to locate tumour in a tissue. What is the wavelength of sound in the tissue in which speed is 1.7 Km/s and frequency 4.2
  1. Discuss the elastic collision of two bodies in one dimension. Calculate the velocities of the bodies after the collision. Discuss what happen when both the bodies are of equal
  2. A bullet of mass 100g moving with a velocity 240 m/s hits a target. After passing through the target 10 cm thick, it continued to move with a velocity of 160 m/s. Find the average resistance offered by the target.


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