Duduli

Answer:- A force acting on a particle is said to be conservative if the kinetic energy of the particle remains unchanged for a complete round trip.

Answer:- The Pascal's law states that the pressure exerted at any part of a confined liquid is transmitted equally and undiminished in all directions throughout the liquid.

Answer:- The weight exerted by vertical  column of all layers of air of atmospheric on unit area of earth's surface is called the atmospheric pressure.

Answer:- The ratio of lateral strain to longitudinal strain is called the Poisson's ratio.

Answer:- The property of material of a body by virtue of which the body regains its original undeformed state after removal of deforming force is called elasticity.

Answer:- If external force acting on a system of particles is zero,the total linear momentum of the system remains conserved.

Answer:- Amplitude of a particle vibrating in SHM is defined as it's maximum displacement on either side of the mean position.

Answer:- If a body vibrates without the help of any external periodic force on it, it is said to be excuting free vibrations.

Answer:- Restoring force is a force that try to move the body back to its mean position or equilibrium position.

Answer:- It consists of a heavy metallic bob,  suspended from a rigid support by means of a long weightless, flexible and inextensible string.

Answer:- A spring pendulum consists of a heavy mass suspended from a rigid support by means of a massless spring.

Answer:- Degree of freedom, of a mechanical system, is defined as the no. of possible independent ways in which the position and configuration of the system may change.

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Answer:- Resonance is the phenomenon of setting a body into vibrations by a strong periodic force whose frequency  coincides with the natural frequency of the body.

Answer:- A simple pendulum having a time period of two second is called a second pendulum.

Answer:- Centrifugal force is the pseudo (imaginary) force which acts on a body, rotating with uniform velocity in a circle, along the radius away from the centre.

Answer:- If a body is projected at a certain angle with the horizontal or vertical then the body is called an oblique projectile.

Answer:- When a wave propagates in a medium, then energy is transmitted from one place to another.The amount of energy flowing per unit time through unit area perpendicular to the direction of the wave propagation is called the intensity of the wave.

Principle:- ‘‘Whenever a body is immersed, wholly or partly, in a fluid at rest it experiences an upward thrust called buoyant force & loses his weight equal to the weight of fluid displaced by its immersed part.’’

Answer:- In every refrigerator their is a liquid present called refrigerant.The refrigerant passes through a expansion device which expand(cool) the refrigerant and convert the refrigerant into a gas.That gas absorb heat from the objects which are place in refrigerator for cooling. So the objects became cool.Then the gas pass through evaporation tube and go towards compresser.The compresser compresses the hot gas.Then the hot, compress gas passed through condenser pipe,and releases heat into the surrounding and convert  again into liquid refrigerant.This process occur reaptedly in refrigerator and the objects became convert into a cool object.This is the basic working principle of a refrigerator.

Answer:- Precipitation of lyophobic solution particles by electrophoresis is called Cottrell precipitation.

Answer:- Chemistry is a branch of science which deals with the study of the composition of matter and the chemical changes involved in it.

Answer:- It is the maximum value of static friction.It acts when the objects in contact are at the verge of slipping.It is directly proportional to the normal reaction.

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Answer :- The part of nuclear charge which is experienced by the outer most electron is known as effective nuclear charge.

Answer:- According to Kepler's first law all planets are move around  the sun in an elliptical orbit.Sun is located at one of the foci of ellipse.

Answer:- Circle is defined as the locus of all the points having a fixed distance from a fixed point. Fixed distance=radius of circle Fixed point=centre of circle Equation of circle having centre at (a,b) and radius r is (x-a)²+(x-b)²=r²

Answer:- The permanent displacement of the shared electron pairs in a carbon chain towards the more electronegative groups is known as the inductive effect.

Answer:- It is the amount of energy released when ionic substance is dissolved and it's constituent ions are hydrated or surrounded by water molecules.