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what do you mean by conservative forces?

Posted by Known Un 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Ashish Kumar Singh 7 years, 1 month ago

When work done by a force is path independent and depends only on initial and final state then the forces are known as conservative forces . The work done by conservative forces in a closed loop is zero i.e. when initial and final positions are same the work done is zero . Example - gravitational force , electrostatic force , spring force etc.

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A plastic ball is dropped from a height of 1m And renounce several times from the flow if 1.3sec elapsed from the movement it is drop to second impact with the floor what is the coefficient of restitution

Posted by Gitesh Thorat 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Identify the term which has unit but no dimensions

Posted by Shrinig Gaming 7 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Shreya Dixit 7 years, 1 month ago

Strain

Snober Khursheed 7 years, 1 month ago

Solid angle

1Thank You

Sanidhya Jadaun? 7 years, 1 month ago

Angle....

4Thank You

ANSWER

Why more viscous mobile oil is used in summer than in winter in scooter or vehicle??????

Posted by Preethi Rajaneekanth 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Pascal's law application

Posted by Shyam Thej 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Sanidhya Jadaun? 7 years, 1 month ago

Hydraulic brakes and hydraulic lift

ANSWER

Lifeline of a photon

Posted by You Can Do It All Is Well 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State Bernoulli's theorem and pascal law

Posted by Shubhanshu Gupta 7 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Singh Rajput 7 years, 1 month ago

Bernoullis theorem states that for any stream line flow of liquid the sum pressure energy, potential energy , kinetic energy remains constant for every cross section of the liquid

5Thank You

Prakhar J 7 years, 1 month ago

Pascals law states that in an inclosed fluid,if an increased pressure is produced in any part of the fluid,then this change of pressure is transmitted undiminished to all the other part of fluid.

5Thank You

Prakhar J 7 years, 1 month ago

Bernoulli's theorem states that the total energy i.e.pressure energy,potential energy and kinetic energy of an incompressible and non-viscous fluid in steady flow through a pipe remains constant throughout the flow provided there is no source or sink of the fluid along the lenght of pipe.

ANSWER

Differentiate between isothermal and adiabatic

Posted by Kavish Gehlot 7 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Pragati Gola 7 years, 1 month ago

Isothermal is slow process at constant temperature,whereas adiabatic is fast at constant heat exchange b/w system and surrounding.

1Thank You

Muskan Sekho 7 years, 1 month ago

Isothermal in which temperature remains constant and adiabatic is in which heat cannot exchange in system ,heat can neither leave nor enter in the surrounding

1Thank You

Naveen Kumar Sharma 7 years, 1 month ago

In isothermal delta "U=0 "and where in adiabatic process "Q=0".

ANSWER

What is vector quantities?

Posted by Kumari Jetawni 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 7 years, 1 month ago

Vector quantities are those quantities which require magnitude as well as direction for their complete specifications. Vectors are physical quantities, which besides having both magnitude and direction also obey the law of geometrical addition. (The law of geometrical addition, i.e. the law of triangular addition and law of parallelogram are discussed later in this chapter). Some physical quantities, which are vectors are displacement, velocity, acceleration, force, electric intensity, magnetic intensity, magnetic moment etc. Vector quantities cannot, in general, be added in algebraically.

5Thank You

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Calculate the speed of sound in air at STP the mass of 1 mole of air 29×10^-3kg

Posted by Muhammed Mishal 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Does a rocket really need the escape velocity of 11.2km/s initially to escape from the earth?

Posted by Rajni Kumari 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Prakhar J 7 years, 1 month ago

Yes it required escape velocity to completely overcome Earth's gravitational field. ...

ANSWER

What is the principle of homoginity

Posted by Nitanshu Gupta 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Gaurav Seth 7 years, 1 month ago

The principle of homogeneity is that the dimensions of each the terms of a dimensional equation on both sides are the same . Any equation or formula involving dimensions (like mass, length, time , temperature electricity) have the terms with same dimensions.

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wat is echo

Posted by Shivshant Prasad 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Sanidhya Jadaun? 7 years, 1 month ago

a sound that is repeated as it is sent back off a surface ,such as the wall of a tunnel.

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What is steradian ?explain in simple words.

Posted by Sakera Patel 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Sugam Sharma 7 years, 1 month ago

Unit of an solid angle.

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What is work energy theoram ?

Posted by Romi Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Prakhar J 7 years, 1 month ago

It states that the work done on a body is equal to the change in it's kinetic energy

Aditya Mishra 7 years, 1 month ago

This relation between the kinetic energy of an object and workdone is called “Work-Energy Theorem”. It is expressed as: Work - Energy Theorem

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If efficiency of motor 240v and 5 ampere is 80%.How much of water raised of tank height 60m in 1 hour?

Posted by Priya Banik 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Write four fundamental forces in the ascending order of their strength

Posted by Amit Sharma 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Avantika Tayal 7 years, 1 month ago

Gravitational force,week nuclear foce electrostatic force and strong nuclear foce

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Dopplers effect concept

Posted by Singla Ji 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Avantika Tayal 7 years, 1 month ago

It is the effect which occur between the souce of wave and the observer provided that bogh r in motion

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What is interference

Posted by Ali Hussein 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is oscillatiob

Posted by Surojit Ghosh 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Sanidhya Jadaun? 7 years, 1 month ago

Oscillation refers to any Periodic Motion moving at a distance about the equilibrium position and repeat itself over and over for a period of time .

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List the factors on which the resistance of a conductor in the shape of a wire depends

Posted by Physics Goyal Sir 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Please give me blue print of physics and chemistry

Posted by Jahnvi Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What do you understand by phase

Posted by Crazy In Today With Kaushik 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Kuldeep Gautam 7 years, 1 month ago

It is the argument of sin or cosine function

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How is viscous force different from fricton

Posted by Saif Amaan 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is refractive index

Posted by Aryan Mishra 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Gaurav Seth 7 years, 1 month ago

Refractive index is a measure of how much speed of light changes when it enter the medium from air.