# What is formula of work done?

To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd. If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.

## What is a list of important derivations of physics class 11?

• Ohm’s Law.
• Newton’s Laws Of Motion.
• Archimedes Principle.
• Doppler Effect.
• Kirchhoff’s Law.
• Law Of Reflection.
• Ampere’s Law.

## 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 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 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.

## 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.

## 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 …

## How is the lens formula derived?

The focal length, image distance, and object distance are all connected in the lens formula for concave and convex lenses. The formula 1/f = 1/v + 1/u can be used to establish this link. The focal length of the lens is f, and the distance of the generated image from the lens’ optical centre is v in this equation.

## 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:

## 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.

## 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 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 the best time to study physics?

• Morning (4–6 A.M ) : Biology or Chemistry. This time period is called Brahm Vela or Amrit Vela.
• Morning (7–9 A.M) : Maths. Study maths as a refreshing subject in the morning.
• Evening ( 5–7 P.M) : Physics. Again Start fresh with conceptual subject.
• Night ( 7:30 – 9:30 pm) : Chemistry or Biology.

## 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 are the important topics in electrostatic potential and capacitance?

• Equipotential surfaces.
• Potential due to electric dipole and system of charges.
• Electric potential energy due to electric dipole and system of charges.
• Effect of dielectric on capacitors.
• Energy stored in capacitors.
• Combinations of capacitors.

## What are the 3 equations of motion?

• First Equation of Motion : v = u + a t.
• Second Equation of Motion : s = u t + 1 2 a t 2.
• Third Equation of Motion : v 2 = u 2 + 2 a s.

## 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).

## What is the derivative of 1?

1 Answer. Derivative of a whole number is zero.

## 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 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.

## 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.