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Why current is taken as a physical quantity,since it is resultant of two quantities - charge and time

Posted by Mridul Mayank 6 years, 5 months ago

CBSE > Class 11 > Physics

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Elastic behaviour of solids

Posted by Basavaraj Sb 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 6 years, 5 months ago

Solid objects will deform when forces are applied on them. If the material is elastic, the object will return to its initial shape and size when these forces are removed.

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Elastic behaviour

Posted by Basavaraj Sb 6 years, 5 months ago

CBSE > Class 11 > Physics

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Convert acceleration due to gravity 9.8 m / s square in CGS .

Posted by Shivansh Kumar 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 6 years, 5 months ago

Gravitational acceleration is 9.81 m/s². By using the conversion 1 m = 100 cm, we can find it in CGS. This gives us 981 cm/s².

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In one second a particle goes from point a to point b moving in a semi circle of radius 1m Find average speed

Posted by Raghavendra Bhat 6 years, 5 months ago

CBSE > Class 11 > Physics

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Determine the coordinates of the center of mass of a right circularsolid cone of base radius R and hieght h

Posted by Hardik Vora 6 years, 5 months ago

CBSE > Class 11 > Physics

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Hlow gyesssssss

Posted by Rohit Sahani? 6 years, 5 months ago

CBSE > Class 11 > Physics

4 answers

Simran Simran 6 years, 5 months ago

Hlo guys.....m. How r u all....may god bless u ..... Be happy....

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Gaurav Kumar 6 years, 5 months ago

Hello

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Rohit Sahani? 6 years, 5 months ago

How r u muskan

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Muskan Malik 6 years, 5 months ago

Hlo

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In physics where is realative error dervation

Posted by Account Deleted 6 years, 5 months ago

CBSE > Class 11 > Physics

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Which is good lab manual for physics

Posted by Janvi Sharma 6 years, 5 months ago

CBSE > Class 11 > Physics

4 answers

Devil ? 6 years, 5 months ago

Candid

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Abhinav Kumar 6 years, 5 months ago

Sugandha

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Janvi Sharma 6 years, 5 months ago

Thanks

1Thank You

Binita Doley 6 years, 5 months ago

Arihant

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When is the value of g is positive and when it is negative

Posted by Hema Bisht 6 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Sia ? 6 years, 5 months ago

If you choose downward direction to be positive and upward to be negative (generally used convention) then, g will be positive if the object is stationary or moving downwards. g will be negative if the object is moving upwards.

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Sakshi Singh 6 years, 5 months ago

+ve tb hota h jb koi cheej earth ki trf gir rhi ho Aur -ve tb hota h jb kisi cheej ko earth se faiki jaye

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d/dx e tanx2

Posted by Abhishekh Singh 6 years, 5 months ago

CBSE > Class 11 > Physics

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Laws of periods definition

Posted by Mubin Nagari 6 years, 5 months ago

CBSE > Class 11 > Physics

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If the length and time period of an oscillating pendulum m have error 1% and 2% respectively what is error in the estimate of g

Posted by Shweta Soni 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Mayukh Gupta 6 years, 5 months ago

Formula for T is T=2pie under root L by g where 2 pie is constant and under root can be converted in to power of 1/2

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Define strategy of approximation

Posted by Shruti Jha 6 years, 5 months ago

CBSE > Class 11 > Physics

3 answers

Ranjeet Kumar 6 years, 5 months ago

The strategy orlf approximation turned out to be very successful. (i) Most observed phenomena in daily life are rather complicated manifestations of the basic laws. (ii)Scientists recognised the importance of extracting the essential features of a phenomenon from its less significant aspects. (iii)It is not practical to take into account all the complexities of a phenomena in one go. (iv)A good strategy is to focus first on the essential features of a phenomena and discover the basic principles and then introduce corrections to build a more refined theory. (v)During study for free fall under gravity we assume air resistance to be zero.Similarly in mechanics we take moving objects as point objects.

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Ranjeet Kumar 6 years, 5 months ago

The strategy of approximation can be explained as - [1]Speculation (talking about future results of experiments) and conjecture ( a approximation) have an important role to play during the procedure of scientific method of describing a phenomena, but must be verified by experiments. For example (i) The circular orbits as assumed by Nicolaus Copernicus in the heliocentric theory was replaced after certain inspections and experiments carried by Johannes Kepler. (ii)Paul Dirac in 1930, theoretically introduced the concept of antiparticle,which was later experimentally verified by Carl Anderson. [ii] Sometimes physical constants had to be assumed , their values later experimentally verified. The Universal gravitational constant G and constant in the coulombian force 1/4πε_0 were earlier assumed and later evaluated by using torsion balance.

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Sia ? 6 years, 5 months ago

Approximation theory is a branch of mathematics, a quantitative part of functional analysis. Approximation usually occurs when an exact form or an exact numerical number is unknown.

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what is the derivation of projectile motion

Posted by Anurag Jaiswal 6 years, 5 months ago

CBSE > Class 11 > Physics

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A ball is thrown with a velocity of 20 m/s at an angle of 30 degree at the horizontal from the top of a building 15 m high. Find the time taken by the ball to reach the ground.

Posted by Kuldeep Chauhan 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Mayukh Gupta 6 years, 5 months ago

Time is 1.732 seconds

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One of the rectangular components of a velocity 100kmper hour is 50root3 .find the other rectangular component

Posted by Rohit Yadav 6 years, 5 months ago

CBSE > Class 11 > Physics

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what is differentiation and integration

Posted by Saman Patel Khan 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 6 years, 5 months ago

Differentitation is the study of the rates at which quantities change.
Integration is a way of adding slices to find the whole. Integration can be used to find areas, volumes, central points and many useful things. But it is easiest to start with finding the area under the curve of a function like this: What is the area under y = f(x)?

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Can I get video solutions of ch 2 text back exercise

Posted by Pavithra Thekkethil 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Esha Pal 6 years, 5 months ago

Search in YouTube...

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Two wires A and B. If the radius of A is 3 times of B. If the force of A is 9 times than that of B. Find the ratio of A and B

Posted by Jaydeep Jadeja 6 years, 5 months ago

CBSE > Class 11 > Physics

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What is initial velocity

Posted by Vishal Yadav 6 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 6 years, 5 months ago

Starting points

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Two wires A and B . If the radius of A is 3 times than that of B

Posted by Jaydeep Jadeja 6 years, 5 months ago

CBSE > Class 11 > Physics

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Derive by the method of dimensions,an expression for the volume of a liquid flowing out per second through a narrow pipe.Assume that the rate of flow of liquid depends on a) the coefficient of viscosity 'n' of the liquid. b)the radius 'r' of tye pipe c)the pressure gradient [p÷l] along the pipe.

Posted by Amru Sree 6 years, 5 months ago

CBSE > Class 11 > Physics

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Why a magnet attracts iron..

Posted by Raaz Khan 6 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Raaz Khan 6 years, 5 months ago

How earth attracts everything

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Kushal . 6 years, 5 months ago

Magnet attracts iron due to the influence of their magnetic feild upon the iron. Before a picec of iron enters the magnetic feild of a magnet polarization of the irons atom is random. When exposed the magnetic feild the atom begins to alight their electrons with the flow of magnetic feild which make the iron magentized as well. This in trun creates an attractio between two magnetized objacts.

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Can a body is said to be rest as well as motio at a same time.

Posted by Kushal . 6 years, 5 months ago

CBSE > Class 11 > Physics

5 answers

Kushal . 6 years, 5 months ago

Thax

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Aman Kumar 6 years, 5 months ago

Yes

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Ayush Vishwakarma?? 6 years, 5 months ago

Take as a example when a man is sitted in the train and the train is running at that time then the man is said to be in rest in inside the train but if any men look you then you are in motion

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Ayush Vishwakarma?? 6 years, 5 months ago

Yes

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Ankit Kumar Sharma 6 years, 5 months ago

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A RADAR signal is beamed towards a planet and it's echo is received 7 minutes later. If the distance between the planet and the earth is 6.3into 10 power 10 m. Calculate the speed of the signal

Posted by Selvi Nadraj 6 years, 5 months ago

CBSE > Class 11 > Physics