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What is modlous?

Posted by Neeraj Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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What are the important derivations in Physics class 11

Posted by Mansi Moolya 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Chirag Gupta 7 years, 10 months ago

All derivations of chapter 4,5,6,12,13,14,15,

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The three rods have identical geometrical dimensions heat flow from hot end at rate of 40w in the arrangement (a) find the rate of heat flow when the rods are joined as the arrangement of (b) and in (c) thermal conductivities of aluminium and copper are 200w/m-°c and 400 w/m-°c respectively

Posted by Kashish Girsa 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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define heat engine and explain its working? calculate the net work and drive its efficiency

Posted by Ankit Teotia 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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What is MOI of ring about a tangent to a circle of the ring [ Icm = MRR / 2 ]

Posted by Rohit Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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Derivation of displacement in n'th second.

Posted by Lakshay Jaat Dhaka 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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What Is equation when energy losses from perfectly inelastic collision?

Posted by Param Prashar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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why sun does not pull earth towards it?

Posted by Abhishek Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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Distance time of graph

Posted by Sanjeev Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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Air is filled in a bottle and it is corked at 35°C. If the cork can come out at 3 atmospheric pressure, then upto what temperature should the bottle be heated in order to remove the cork?

Posted by Sanskar Gupta 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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Intertial and gravitational mass

Posted by Dheerendra Singh Rajput 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Dheerendra Singh Rajput 7 years, 10 months ago

The mass of a body which measures its INERTIA is called its inertial mass. The mass of the body which DETERMINES THE GRAVITATIOMAL PULL due to earth acting upon it is called its gravitational mass.

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How to concentrate on studies?

Posted by Dheerendra Singh Rajput 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Manasa S 7 years, 10 months ago

Say me also how to concentrate on studies...

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What is the moment of inertia of a rod of mass M and length L about an axis perpendicular to it through 1end given the moment of inertia about the center of mass is 1/12ML

Posted by Moksh Tantla 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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Pass ho jayega itne kam notes ko phad kar

Posted by Abhishek Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Rohan Roy 7 years, 10 months ago

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Second law of motion is real law of motion

Posted by Pradyumna Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Kamal Lalwani 7 years, 10 months ago

Yes,as both the other two laws i.e. first and third, are contained in the second law.It has its deriviation.

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Why we should not stand near platform when train is reaching platform?

Posted by Sudhansh Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Shivam Mishra 7 years, 10 months ago

Here newton's gravitation law is applicable when train coming near platform the force of attraction acting between train and object at platform if we stand near platform force of attraction acting between train and we people and we already know that train has more mass than us so train attract we people towards it. so we should not stand near platform when train is reaching platform

Kamal Lalwani 7 years, 10 months ago

Bernoulli's principal is applied here

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What is the need for banking the tracks

Posted by Rahul Mehta 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Devik Kamath 7 years, 10 months ago

It is important for turning of vehicle during the curved turns. And friction is also used for this purpose.

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Fundamental quantity

Posted by Abdul Sameer Khan 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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What is the SI unit of Boltzmann constant?

Posted by Ayushi Malhotra 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Dheerendra Singh Rajput 7 years, 10 months ago

As Boltzman's constant=Energy /Temperature So, its SI Unit is Joule/Kelvin or J/K.

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What is the SI unit of root mean square velocity??

Posted by Ayushi Malhotra 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

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Any PCM students here?

Posted by Naaaaaaaaaaaaaaaaaaa Naaaaaaaaaaaaaaaaaaa 7 years, 10 months ago

CBSE > Class 11 > Physics

3 answers

Manasa S 7 years, 10 months ago

Yes iam......

Shivam Mishra 7 years, 10 months ago

Why?

Dheerendra Singh Rajput 7 years, 10 months ago

No????????

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Which is easier push or pull and why

Posted by Virendra Choudhary 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Naaaaaaaaaaaaaaaaaaa Naaaaaaaaaaaaaaaaaaa 7 years, 10 months ago

Pull...

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Work energy theorem...

Posted by Jahnvi Chaturvedi 7 years, 10 months ago

CBSE > Class 11 > Physics

3 answers

Dheerendra Singh Rajput 7 years, 10 months ago

Kf-Ki=W [Kf=Final kinetic energy and Ki means initial kinetic energy,therefore,Kf-Ki=change in kinetic energy and it is equal to the work done;(W)].

Virendra Choudhary 7 years, 10 months ago

Net work done on body = change in kinetic energy

Aradhya Singhai 7 years, 10 months ago

According to the work-energy theorem, the net work on an object causes a change in the kinetic energy of the object. The formula for net work is net work = change in kinetic energy = final kinetic energy - initial kinetic energy.

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Why rain drops are sperical in shape

Posted by Bipradeep Roy 7 years, 10 months ago

CBSE > Class 11 > Physics

7 answers

Shivam Mishra 7 years, 10 months ago

Due to surface tension , liquid try to minimize its surface area so rain drops are spherical

Dheerendra Singh Rajput 7 years, 10 months ago

Surface tension also plays important role in this phenomenon

Dheerendra Singh Rajput 7 years, 10 months ago

It is due to the teason that when the rain drops fall on the earth's surface then due to the gravitational force of the earth the drop feels a force acting downwatds and changes its position and a pointed closening on the outer surface(????)

Aradhya Singhai 7 years, 10 months ago

Raindrops start to form in a roughly spherical structure due to the surface tension of water. This surface tension is the "skin" of a body of water that makes the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.

Muskan Patel 7 years, 10 months ago

reason is surface tension not viscosity

~Pragya~ ~Kumari~ 7 years, 10 months ago

Due to surface tension

Aditya Agrahari 7 years, 10 months ago

Due to Viscosity