Class 12 Physics Important Questions | Chapter 1 Rotational Dynamics

Here we have a given Class 12 Physics Important Questions for Maharashtra Board HSC Examination 2023. Every students want to score good marks in Class 12 Board Exam,but number of students don't know how to score good marks. Dear students, given following questions had been asked in earlier HSC Board Examinations. From this post, you will know which type of questions had been asked in earlier Board Exams and same questions or same type of questions will be asked in your upcoming examination. If you study all these questions, you will get very good marks in your board examinations, Because so many questions from the following given questions will be asked in your upcoming examination.Therefore go through our Class 12 Physics Important Questions which are given in chapter-wise manner and simply try to solve these questions to score very good marks in Physics and obviously, you will! Best wishes to all dear students for your upcoming Maharashtra State Board Exam 2023.

यहां हमारे पास महाराष्ट्र बोर्ड HSC परीक्षा 2023 के लिए कक्षा 12वीं के Physics के महत्वपूर्ण प्रश्न दिए गए हैं। प्रत्येक छात्र कक्षा 12वीं की बोर्ड परीक्षा में अच्छे अंक प्राप्त करना चाहते हैं, लेकिन कई छात्र यह नहीं जानते कि अच्छे अंक कैसे प्राप्त करें। प्रिय छात्रों, नीचे दिए गए प्रश्न पिछले एचएससी बोर्ड परीक्षाओं में पूछे गए थे। इस पोस्ट से आप जानेंगे कि पिछली बोर्ड परीक्षाओं में किस प्रकार के प्रश्न पूछे गए थे और आपकी आगामी परीक्षा में भी इसी प्रकार के प्रश्न पूछे जाएंगे। यदि आप इन सभी प्रश्नों का अध्ययन करते हैं, तो आप अपनी बोर्ड परीक्षाओं में बहुत अच्छे अंक प्राप्त करेंगे, क्योंकि निम्नलिखित दिए गए प्रश्नों में से बहुत सारे प्रश्न आपकी आगामी परीक्षा में पूछे जाएंगे। इसलिए हमारे कक्षा 12 के भौतिकी के महत्वपूर्ण प्रश्नों को देखें जो अध्याय में दिए गए हैं | फिजिक्स में बहुत अच्छे अंक प्राप्त करने के लिए इन प्रश्नों को बुद्धिमान तरीके से हल करने का प्रयास करें और जाहिर है, आप करेंगे! सभी प्रिय छात्रों को आपकी आगामी महाराष्ट्र राज्य बोर्ड परीक्षा 2023 के लिए शुभकामनाएं।


Class 12 physics important questions

Class 12 Physics Important Questions | Chapter 1 Rotational Dynamics

• Derive an expression for period of a conical pendulum. (March 2008)

• Explain the physical significance of moment of inertia. (March 2008)

• Define radius of gyration and give its physical significance. (March 2008, Oct 2013, July 2018)

• Define period of conical pendulum and obtain an expression for its time period. (Oct 2008, 2009)

• Define moment of inertia. State its unit and dimension. State the factors on which moment of inertia depends. (Oct 2008)

• Derive an expression for the kinetic energy of a body rotating with uniform angular velocity. (March 2009)

• State and prove the principle of perpendicular axes. (March 2010)

• Obtain an expression for maximum speed with which a vehicle can be driven safely on a banked road. Show that the safety speed limit is independent of the mass of the vehicle. Show that the angle of banking is independent of mass of vehicle. (March 2010, Oct 2010)

• Distinguish between centripetal force and centrifugal force. (March 2009, March 2010, March 2013, March 2018)

• Obtain an expression for maximum safety speed with which a vehicle can be safely driven along curved banked road. (March 2010, 2012)

• Define centripetal force and give its any two examples. (March 2011)

• State and prove law of conservation of angular momentum. Give its examples. (March 2011, Oct 2011)

• Show that total energy of a body performing vertical circular motion is conserved. (March 2011)

• State S.I. unit of angular momentum. Obtain its dimensions. (March 2012)

• Derive an expression for kinetic energy, when a rigid body is rolling on a horizontal surface without slipping. Hence find kinetic energy for a solid sphere. (March 2013)

• A particle of mass m, just completes the vertical circular motion. Derive the expression for the difference in tensions at the highest and the lowest points. (March 2013)

• Prove the relation:
Torque = M.I. X angular acceleration. (March 2013)

• State and prove theorem of parallel axes. (March 2014)

• Draw a diagram showing all components of forces acting on a vehicle moving on a curved banked road. Write the necessary equation for maximum safety, speed and state the significance of each term involved in it. (Oct 2014)

• State the law of conservation of angular momentum and explain with a suitable example. (Oct 2014)


• State theorem of parallel axes and theorem of perpendicular axes about moment of inertia. (March 2015)

• Draw a neat labelled diagram of conical pendulum. State the expression for its periodic time in terms of length. (Oct 2015)

• State an expression for the moment of inertia of a solid uniform disc, rotating about an axis passing through its centre, perpendicular to its plane. Hence derive an expression for the moment of inertia and radius of gyration:
i. about a tangent in the plane of the disc and 
ii. about a tangent perpendicular to the plane of the disc. (Oct 2015)

• State and prove : law of conservation of angular momentum. (Oct 2015)

• State and prove theorem of parallel axes about moment of inertia. (March 2016)

• Draw a neat labelled diagram showing the various forces and their components acting on a vehicle moving along curved banked road. (July 2016)

• Obtain an expression for torque acting on a body rotating with uniform angular acceleration. (July 2016)

• Explain the concept of centripetal force. (March 2017)

• Obtain an expression for torque acting on a rotating body with constant angular acceleration. Hence state the dimensions and SI unit of torque. (March 2017)

• Draw neat, labelled diagram showing different forces acting on a vehicle moving along a banked road. (July 2017)

• Explain the physical significance of radius of gyration. (July 2017)

• Define moment of inertia. State its SI unit and dimensions. (March 2018)

• State and prove principle of conservation of angular momentum. (March 2018)

• What is the value of tangential acceleration in U.C.M.? (March 2019)

• Obtain expressions of energy of a particle at different positions in the vertical circular motion. (March 2019)

• Define radius of gyration. Write its physical significance. (March 2019)

• Define U.C.M. Name the forces acting on a body executing nonuniform circular motion. (July 2019)

• Explain the principle of conservation of angular momentum with the help of two appropriate examples. (July 2019)

• State and prove the principle of parallel axes in rotational motion. (March 2020)

• Define uniform circular motion. (March 2020)

👉 Students are suggested to go through our Class 12 Physics Important Questions to score more in your upcoming 2023 Board Examination. 👇👇

Class 12 Physics Important Questions Chapter-wise

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Comments

  1. AnonymousDecember 27, 2022 at 9:37 AM

    Thank you so much sir..This is the best site for 12th science students of maharashtra board.For this type of questions ,we have to paid nearly Rs.200 for question bank books.Thanks for providing us this for free.

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