Physics Past Paper 2021 Class 11 |
In this post we will share with you Physics Past Paper 2021 Class 11 and you can read them and also learn them for the preparation of next year's exams if you want to get good marks in your exams. We already posted other books study solutions for students help only so that our Pakistani students can prepare for their exams so if you like these our struggle and post and study solutions so you can share Physics Past Paper 2021 with other students who also want to find these past papers 2021 because it is the last year in which students attempt their papers so now our duty to provide you this 2021 past papers for next year students so that they can easily find them from our website. Our Previously Post on this website Biology Past Paper 2021 Class 11.
Physics Past Paper 2021 Class 11 |
This is the Physics Past paper of 2021 for class 11 students who are newly admitted to colleges and taking classes in colleges regularly so please look at past papers 2021 during the preparation of your books and exams because these past papers are very important for students who don't know the paper pattern and how to attempt any papers so these past papers 2021 will help students. So please read this Physics Past Paper 2021 Class 11 so that this paper and these questions are very helpful for news students if they want to get good marks in their exams so these questions short and longs will help them in final papers if you find answers of these questions because here we provide you only questions but you should find answers of these questions from your books. If you like this post then you can share it Physics Past Paper 2021 Class 11 with your brother and sister and class fellows so that they can also get benefits from this past paper 2021. Please also read this Education Past Paper 2021 Class 11.
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These past papers 2021 are also very important for students so please also read these helpful posts because these posts will also help you in your papers if you find answers and then prepare them properly.
Physics Past Paper 2021 Class 11
QNo1
- Calculate the dimension of physical quantities if possible 2s and rupees hundred.
- Add the following masses given in kg up to appropriate precision 2 189 ,0.089,11.8 and 5.32.
- State the principle of homogeneity of physical quantities equation.
- What are the dimension and units of gravitational constant G in the formula F=Gm1m2/r2?
- Find the dot product of two vectors if A=3K and B = -5.
- Write down the five steps to find addition of vectors by rectangular comoents.
- Surpose the sides of a closed polygen represent vectors arranged by head to tail rule. What is the sum of these vectors?
- Add a vector A = 2i+3 and thirty chairs.
- When two identical masses collide with each other in eladtic collision. What will be the velocities after collision?
- Is momentum is conserved in an inelastic collision? Explain the reason.
- How the hair acts like a crumple zone on your skull?
- In law of conservation of momentum is valid in an inelastic collision?
This is the 1st section of short questions of Physics Past Paper 2021 Class 11 and these 1st section short questions are very important for students so please read properly read them and try to find answers to this 1st section short questions so that you can prepare for your next year paper. Many students don't know how to find and collect important short questions and short notes and others so we are always here to help our beloved students by providing students solutions, important long and short questions, short notes, solved mcqs, and much more for students help only. Students, please share this Physics Past Paper 2021 Class 11 for other students' help because your one share can save the marks of other students. Also, read this Civics Past Paper 2021 Class 11.
QNo2
- An object has one J of potential energy. Explain what does it mean?
- Calculate the work done in kilojoules in lifting a mass of 10 kg through a vertical height of 10m.
- State law of conservation of energy.
- Define escape velocity given its unit.
- State law of conservation of angular momentum also defines the isolated system.
- State the direction of following in simple situation angular momentum angular velocity.
- Is it possible for two identical waves traveling in the same direction along the string to give rise to a stationary wave?
- How are beats useful in tuning musical instruments?
- What is the relation between total energy potential energy and kinetic energy of a body executing SHM?
- What is meant by phase angle does it define the angle between maximum displacement and driving force?
- Describe some common phenomena in which resonance plays an important role.
- Define free and forced oscillations.
QNo 3
- How would you get more orders of spectra using diffraction grating?
- Could you obtain newtons rings with transmitted light? If yes would the pattern be different from that obtained with reflected light?
- Define diffraction grating write the formula for getting the element.
- Why would it be advantageous to use blue light with a compound microscope?
- Define isothermal process and adiabatic process.
- Differentiate between reversible and irreversible processes.
- Is it possible to construct a heat engine that will not expel heat into the atmosphere?
- Briefly explain total internal reflection.
- Derive Boyle's law from the kinetic molecular theory of gases.
Past Papers 2021 | Papers Info |
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Past Paper 2021 | 11TH Class Civics Past Paper 2021 |
Past Paper 2021 | 11TH Class Education Past Paper 2021 |
Past Paper 2021 | 11TH Class Islamic Studies Past Paper 2021 |
Past Paper 2021 | Class 11TH Islamiat Elective Past Paper 2021 |
Long Questions
- Define elastic collision show that relative speed of approach is equal to relative speed of separation for one dimensional collisio.
- The magnitude of dot and cross product of two vectors are 6√3 and 6 respectively.
- Find the angle between the vectos.
- Define stationary waves. Show that frequencies of stationary waves in a stretced strung are quantized.
- A car of mass 800 kg traveling at 54kmh-1 is brought to rest in 60 meters. Find the average retarding force on the car.
- Define moment of inertia. Give its unit and dimension. Derive it's relation for a rigid body.
- Certain globular protein particle has a density of 1246kgm-3. It falls through pure water (n=8.0×10_4kgm-1s_1) with a terminal speed 3.0cmh-1. find radius of the particle.
- What is SHM? Derive a relation for instantaneous velocity and acceleration in terms of in SHM and uniform circular motion.
- A thermodynamic system under goes a process in which it's internal energy decrease by 300 if at the same time 120 j of work is done on the system. Find the heat lost by the system.
- What is a simple microscope? Calculate it's magnifying power.
- A second order spectrum is formed at an angle of 38° when light falls normally on a diffrection grating having 5400 lines per centimeter. Determine wavelength of the light used.
This is the last and long questions sections so students kindly also read these long questions because these long questions are also helpful and important for the preparation of exams but in last we want to tell you that please read books first the try to read any other short notes and past papers because all questions come in papers from books only therefor students should read and learn books first then others.
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