# What is Stokes law in physics class 11?

Stoke’s Law states that the force that retards a sphere moving through a viscous fluid is directly proportional to the velocity and the radius of the sphere, and the viscosity of the fluid.

## Are derivations important for physics?

Derivations in physics are very important for CBSE class 12 board exams. Practicing them is necessary for getting good marks. It’s going to be a long answer. The following derivations are the most important from examination point of view.

## What is the easiest way to learn physics derivations?

The best way to get command over derivations of physics is to understand it and practice the derivation periodically after sometime. Mathematics is the language of physics. If you are good at mathematics, then there is no difficulty in understanding the derivations of physics.

## What is Bernoulli theorem Class 11?

Bernoulli’s theorem states that the addition of all the energies of a fluid when fluid is in motion is constant. Or in other terms no energy is dissipated through friction between the layers of the fluid. This theorem is for ideal fluids.

## Are derivations important for NEET?

Not all derivations are important but there are various derivations which you should practice so that you know how to start with questions basically numericals based on derivations like derivations of electrostatics are important and derivation of optics are also important it is because questions are moulded in such a …

## What is derivation of formula?

Derivatives are the fundamental tool used in calculus. The derivative measures the steepness of the graph of a given function at some particular point on the graph. Thus, the derivative is also measured as the slope.

## What is the easiest way to memorize derivations?

1. Do problems related to that formula(use it)
2. Understand the formulae (physical meaning-what does it mean)
3. Prepare a list containg formule to avoid ambiguity among your formulae.

## How can I memorize physics fast?

1. Mastering the basics is necessary: One of the easiest ways of learning physics is to master the basic theories.
2. Simplification is a Key Rule:
3. Create Flashcards:
5. A good tutor makes a BIG difference!
6. Use diagrammatic representations to learn the concepts:

## How is Prism formula derived?

1. In the case of minimum deviation,∠r1=∠r2=∠r.
2. A=∠r1+∠r2.
3. A+δ=i1+i2 (∵ In the case of minimum deviation.
4. i1=i2=i and δ=δm)

## Are derivations asked in chemistry?

Are derivations important for the 12th CBSE board exams in physics and chemistry? Yes derivations are very important for board exams especially for physics. There is 30% theoretical in physics so mostly the questions are derivations.

## What is the derivation of kinetic energy?

The kinetic energy of a body is the energy that is possessed due to its motion. Kinetic energy is the work needed to accelerate an object of a given mass from rest to its stated velocity. The derivation of kinetic energy is one of the most common questions asked in the examination.

## Is it OK to study at night?

Studying at Night Hence, the evening or night time is a more effective time for them to read and study. Studying at this time also helps to improve your concentration and creativity as there are fewer distractions, and with everyone in bed, there is definitely peace and quiet.

## How many hours a day should you study?

Study Every Day: Establish a daily routine where you study in one place a minimum of 4 -5 hours each day. There are different kinds and ‘levels’ of study discussed below. What is important is that study becomes the centerpiece of your day and the continuous element in your work week.

## How can I improve my physics in class 11?

1. The Exam Pattern and Syllabus of Class 11 Physics Exam.
2. Focus on Important Topics.
4. Practice Question Papers.
5. Revise Properly.

## What is Pascal law class 11?

Pascal’s law says that pressure applied to an enclosed fluid will be transmitted without a change in magnitude to every point of the fluid and the walls of the container. The pressure at any point in the fluid is equal in all directions.

## What is Reynolds Number Class 11?

Reynolds number is a dimensionless quantity that is used to determine the type of flow pattern as laminar or turbulent while flowing through a pipe. Reynolds number is defined by the ratio of inertial forces to that of viscous forces.

## What are the basic physics formulas?

• a = \fracv-ut
• \rho = \fracmV
• P= \fracWt
• P= \fracFA
• E = \frac12mv^2.
• f= \fracV\lambda

## How do you read derivation?

One type of notation for derivatives is sometimes called prime notation. The function f ´( x ), which would be read “ f -prime of x ”, means the derivative of f ( x ) with respect to x . If we say y = f ( x ), then y ´ (read “ y -prime”) = f ´( x ).

## How do you derive the three equations of motion?

1. s = ½ × (Sum of Parallel Sides) × Height.
2. s = 1/2 x (OA + CB) x OC. Since, OA = u, CB = v, and OC = t.
3. s = 1/2 x (u+v) x t. Now, since t = (v – u)/ a.
4. s = ½ x ((u+v) × (v-u))/a. Rearranging the equation, we get.
5. s = ½ x (v+u) × (v-u)/a.
6. s = (v2-u2)/2a.

## Can I skip Physics for NEET?

You must not skip preparing for Physics for the NEET exam. In NEET, Physics makes up 25% of the exam. 50% is for Biology, and the other 25% is from Chemistry.

## Can we score 100 Physics NEET in one month?

Only one month of preparation can give you a score of 650 or higher in NEET if you have clarity of concepts in all three subjects. In subjects like Physics, for example, if the fundamental concept is clear, you will be able to solve numerical problems and gain marks.

## How can I score 180 in Physics NEET without coaching?

Complete the paper by NCERT only. More than 95% of the NEET is prepared from NCERT only. If you’re reading the NCERT notes line by line, you will score 180/180 in NEET Physics.

## What is the most famous equation in physics?

The equation E = Mc2 is perhaps the most famous equation of twentieth- century physics. It is a statement that mass and energy are two forms of the same thing, and that one can be converted into the other (ibid., p. 493).