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Hooke's Law Within the elastic limit of a solid material, the deformation (strain) produced by a force (stress) of any kind is proportional to the force. If the elastic limit is not exceeded, the material returns to it original shape and size after the force is removed, other it remains deformed or stretched. The force at which the material exceeds its elastic limit is called 'limit of proportionality.' Discovered in 1676 by the UK scientist and inventor Robert Hooke (1635-1703). See also elastic modulus.

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The length of metallic wire is L1 when tension is T1 and L2 when tension is T2 what is original length of wire?

Posted by Rajmani Pathak 7 years, 11 months ago

CBSE > Class 11 > Physics

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The principle of conservation of energy

Posted by Sejal Bawane 7 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Abc Kamboz 7 years, 11 months ago

Energy can neither be destroyed nor be created but it can be transferred from one form to another

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Advantages of using cgs unit system

Posted by Vipin Shukla 7 years, 11 months ago

CBSE > Class 11 > Physics

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Equation of plane progressive wave

Posted by Ajay Gautam 7 years, 11 months ago

CBSE > Class 11 > Physics

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1 St Law of neuton in motion

Posted by Basu Basu 7 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Akshat Sharma 7 years, 11 months ago

An object at rest remains in rest and an object in motion remains in motion until and unless an unless an external force is applied on it.

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Aditi Verma 7 years, 11 months ago

an object continues its state of rest or uniform motion of body until it is compelled by some external force.

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Define the term surface tension. Obtain an expression for the excess pressure inside a liquid bubble.

Posted by Raushan Kumar 7 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Arnav Singh 7 years, 11 months ago

The property of a liquid due to which the free surface of liquid behaves like a stretched membrane.its expression is p-p0=2s/r inside the liquid and p-p0=4s/r outside the liquid

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Give the derivation of pasacal law

Posted by Ash Jena 7 years, 11 months ago

CBSE > Class 11 > Physics

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Calculate vrms of CO2 at NTP

Posted by Ritik Patharia 7 years, 11 months ago

CBSE > Class 11 > Physics

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What is second law of thermodynamics ?

Posted by Soumya Shukla 7 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Kiran Kotwal 7 years, 11 months ago

second law of thermodynamics us stated by two persons :- 1. Kelvin plank 2. Claussius . . .1. kelvin stated that it is impossible to create a engine which absorbs heat energy from the source and turns completely into work without rejecting any part to the sink. . . 2.claussius stated that it is impossible to create a self acting machine without any external source which would transfer heat energy from a body of high temperature to the body of low temperature.

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Jai Sharma 7 years, 11 months ago

It is impossible for an heat engine to have 100 percent efficiency

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What is poission's ratio?

Posted by Ashish Rao 7 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Arnav Singh 7 years, 11 months ago

Positions ratio is the ratio of lateral strain to longitudinal strain

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Derivation of coefficient of viscosity

Posted by Kriti Srivastava 7 years, 11 months ago

CBSE > Class 11 > Physics

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What is Hooke's law?

Posted by Mehak Rajput 7 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Tushar Bonia 7 years, 11 months ago

I easy words according to hooks law stress is directly proportional to strain

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Mehak Rajput 7 years, 11 months ago

It states that the extension is produced in the wire is directly proportional to the load applied, within elastic limit.

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A balloon is filled up with water, upto how much depth it can be taken inside a lake so that it's volume decreases by 0.01%. Given coefficient of volume expansion if water is 2×100000000.

Posted by Sarthak Pandey 7 years, 11 months ago

CBSE > Class 11 > Physics

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On earth the value of G is 6.67×10 to power -11,what is its value on the surface of moon, where g is 1/6 than the earth?

Posted by Ritik Chalhotra 7 years, 11 months ago

CBSE > Class 11 > Physics

4 answers

Ravi Pal 7 years, 11 months ago

G= constant value. On moon only acceleration due to gravity became one sixth.

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Sushmita Mazumder 7 years, 11 months ago

if it is from gravitation chapter then it is not important

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Sushmita Mazumder 7 years, 11 months ago

Is it from gravitation chapter

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Sushmita Mazumder 7 years, 11 months ago

From where did u get this Q

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Pragya..tell me why velocity is max. At mean position of a oscillating particle but acc. is zero..?with suitable reason...

Posted by Ritika Thakur 7 years, 11 months ago

CBSE > Class 11 > Physics

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A uniform rod of 2mm cross section 0 to 20 degree coefficient of linear expansion 0.000012 /degree y=100000000000 N/MM of is energy density of rod

Posted by Harsh Trivedi 7 years, 11 months ago

CBSE > Class 11 > Physics

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Frequency is the most fundamental property of a wave .why?

Posted by Virendra Narrey 7 years, 11 months ago

CBSE > Class 11 > Physics

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Find the position of the centre of the mass of two sphere of masses 9kg and 11kg,if the distance between their centre is 10m

Posted by Raghav Gupta 7 years, 11 months ago

CBSE > Class 11 > Physics

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Limitations of isothermal process

Posted by Arti Sharma 7 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Harman Preet 7 years, 11 months ago

Isothermal process is a processs where temperature is constant.

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A piece of chalk immerse in water emits bubbles in all directions . why?

Posted by Sushmita Bansal 7 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Kiran Kotwal 7 years, 11 months ago

in my views... i think it has air filled inside it... so when it immerse in water the air should need to come out of chalk...so the air comes outside in the form of chalk.

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How to estimate error in division

Posted by Arslaan Panwar 7 years, 11 months ago

CBSE > Class 11 > Physics

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cp-cv =r prove

Posted by Aditya Gautam 7 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Harman Preet 7 years, 11 months ago

It is derivation from chapter- 6 thermodynamics class- 11 chemistry. For this you can refer to your chemistry reference or your school - tution chemistry notes.

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Ajesh Rana 7 years, 11 months ago

In ncert book ya physics refresher u got it

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Why hot soup taste better than cold soup ?

Posted by Muhammad Shahnoor 7 years, 11 months ago

CBSE > Class 11 > Physics