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What is a charge?

Posted by Garima Girdahr 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Anju Tiwari 8 years, 1 month ago

Fundamental property of a matter by which it exert force on another body

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what is life situation

Posted by Jagesh Vendje 8 years, 1 month ago

CBSE > Class 12 > Physics

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I don't understand how to remember derivations

Posted by Anuj Srivastava 8 years, 1 month ago

CBSE > Class 12 > Physics

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How to practice large derivation of physics

Posted by Anuj Srivastava 8 years, 1 month ago

CBSE > Class 12 > Physics

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What is the cause of colours appear in soap bubbles

Posted by Kajal Bhardwaj 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Dev Krishan Gupta 8 years, 1 month ago

Interference

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Jeet Singh Poonia 8 years, 1 month ago

It is due to polarization of light

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An infinitely large thin plane sheet has a uniform surface charge density +. Obtain the expression for the amount of work done in bringing a point charge q from infinity to a point, distant r, in front of the charged plane sheet.

Posted by Khushbu Chouksey 8 years, 1 month ago

CBSE > Class 12 > Physics

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Dhdhgj

Posted by Arbaab Khan 8 years, 1 month ago

CBSE > Class 12 > Physics

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Is the speed of light in glass independent of the colour of light

Posted by Aryan Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Amar Kumar 8 years, 1 month ago

Light of different wavelengths, or colours, travels at different speeds when they travel through any medium other than vacuum. Red light travels faster than blue in glass.So the speed of light dependent on the color or wavelength of light in glass.

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Ghj Garg 8 years, 1 month ago

No, it is dependent on wavelength of light.

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What is protron

Posted by Abhay Mishra 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amar Kumar 8 years, 1 month ago

A proton is a subatomic particle found in the nucleus of every atom. The particle has a positive electrical charge equal and opposite to that of the electron.In the atoms of any particular element the number of protons in the nuclei is always the same.

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What is electron

Posted by Abhay Mishra 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amar Kumar 8 years, 1 month ago

An electron is a negatively charged subatomic particle. It can be either free or not attached to any atom or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. Each electron carries one unit of negative charge (1.602 x 10^-19 coulomb) and has a very small mass as compared with that of a neutron or proton.

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What is Polaroids

Posted by Vivan Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amar Kumar 8 years, 1 month ago

Polaroid is a material usually plastic which allows light to pass but only where the wave oscillates in one particular orientation. This orientation is called the reference direction.

Polaroid is a type of plastic sheet that can polarize a transmitted beam of normal light because it is composed of long parallel molecules. It only transmits plane-polarized light if these molecules are parallel to the plane of polarization and, since reflected light is partly polarized, it is often used in sunglasses to eliminate glare

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What is a pn junction diode

Posted by Siva Prasad 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amar Kumar 8 years, 1 month ago

P-N junction diode is a two terminal,unidirectional electronics device. When one side of an intrinsic semiconductor is doped with acceptor i.e, one side is made p-type by doping with n-type material, a p-n junction diode is formed.It works in forward biased condition.

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Which are the most important question of physics

Posted by Nk Kumar 8 years, 1 month ago

CBSE > Class 12 > Physics

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Derive an expression for the loss of energy when two conductors at different potentials are brought into electrical contact. Account for this energy.

Posted by Cris Roy 8 years, 1 month ago

CBSE > Class 12 > Physics

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How we can determine that which is diamagnetic and paramagnetic in coordination compounds

Posted by Rida Khan 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Aditya Kumar 8 years, 1 month ago

to determine this...... you have to find first the hybridization of that compound and then you can see the s, p, d, blocks in that if they all are filled it is sure that compound is diamagnetic and if not then its paramagnetic.......

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Meaning of Gaussian suface

Posted by Gautam Vishwakarma 8 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Soumya Sakshi 8 years, 1 month ago

Imaginary surface around a charge

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Himanshu Kumar 8 years, 1 month ago

closed region at every point of which electric field intensity is equal.

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Aditya Kumar 8 years, 1 month ago

close surface.... on which the charge spread only outside of the surface nor inside...

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An electrically charged body is actually surplus or deficit of electrons . Why not protons?

Posted by Arvind Kumar Sinha 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Khushali Verma 8 years, 1 month ago

Protons are actually bound inside the nucleus of an atom and hence cannot be transfered from one atom to the other. Electrons, are free to move around nucleus, and hence can be transferred to another atom. This leads to formation of charged body. When a body gives electrons it develops a positive charge(deficit) and when it receives electrons it gets negatively charged(excess).

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How to complete our syllabus in minimum time ?

Posted by Praveen Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nayan Chaturvedi 8 years, 1 month ago

Depending on your learning skills

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How can I complete wave optics in one day.... I know it's a silly question ?

Posted by Rishika Garg 8 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Piyush Kumar 8 years, 1 month ago

Watch the videos from exam fear ,which is available at this app

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Rohit Bisht 8 years, 1 month ago

Morning twelve to evening ?

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Krishna Soni 8 years, 1 month ago

Jennfh

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State And prove gauss theorem

Posted by Arun Sharma 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Ankur Gangwar 8 years, 1 month ago

A/c to this theoren the net electric flux through a close surface is E0 times to the nef charge enclose within the surface

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Semiconductor chapter is not there plz help it out

Posted by Adnan Chouhan 8 years, 1 month ago

CBSE > Class 12 > Physics

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We know that nucleus is extremely small , and it contains proton only so how they manages so bcz like charge repel each other as we know ,

Posted by Ft I Kg Duh Jj Gukfsfh 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Shruti Bajpai 8 years, 1 month ago

Becoz there is a force called nuclear force which attracts protons towards protons , neutrons towards neutrons and protons towards neutrons and hence they are bounded within the nucleus

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Experim youngsent is performed with light of wavelength 6000 A where in 16 fingers occupy a certain region on the screen if 24 fringes is occupy the same reason with another light of wavelength lamda is

Posted by Sahil Tomar 8 years, 1 month ago

CBSE > Class 12 > Physics