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What are important derivation of semiconductors

Posted by Seeta Kumari 8 years ago

CBSE > Class 12 > Physics

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What is optical density

Posted by Shivani Rana 8 years ago

CBSE > Class 12 > Physics

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Rashi Bamne 8 years ago

Ratio of speed of light in two media ?

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Who is father of physics

Posted by Vaibhav Mishra 8 years ago

CBSE > Class 12 > Physics

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define Hertz reaction

Posted by Neeraj Rajak 8 years ago

CBSE > Class 12 > Physics

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State lenz law in

Posted by Aakash Verma 8 years ago

CBSE > Class 12 > Physics

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Pawan Kushwah 8 years ago

Lenz law said that generated emf (induced) always opposed to direction of motion of current...

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How l solve conceptual question

Posted by Anjali Meena 8 years ago

CBSE > Class 12 > Physics

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Innocent Girl 8 years ago

by doing hard work

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draw a ray diagram of an astronomical telescope for the final image formed at least distance of distinct vision?

Posted by Dilbag Singh 8 years ago

CBSE > Class 12 > Physics

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Whai is electrostatics

Posted by Bharat Kaushik 8 years ago

CBSE > Class 12 > Physics

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Shubham Dwivedi 8 years ago

Electrostatics is the branch of science that deal with the study of electric charges at res

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Draw a plot showing variation of electric field with distance from with centre of a solid conducting sphere of radius R having a charge of +Q onits surface (1)

Posted by Neeraj Verma 8 years ago

CBSE > Class 12 > Physics

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formula of electric suspectibility

Posted by Abhinav Sahu 8 years ago

CBSE > Class 12 > Physics

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Eujk

Posted by Gourav Lohiya 8 years ago

CBSE > Class 12 > Physics

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Explain Rutherford model

Posted by Disha Pal 8 years ago

CBSE > Class 12 > Physics

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Principle and working of optical fiber

Posted by Prishav Das 8 years ago

CBSE > Class 12 > Physics

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Tanuja Biswas 8 years ago

Principle is multiple total internal reflection( tir). Optical fibre has an inner core and an outer covering or jacket also known as cladding. The refractive index of cladding a little less than that of the inner core , thus inner core is optically denser than cladding. An optical signal is projected at core such that it strikes cladding withan angle more than that of critical angle for the pair of refracting media, due to which it undergoes tir and then again on striking surface of cladding, it undergoes tir. Thus multiple tir takes place and signal is received at the other end of cable.

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I have not prepared any thing even a single chapter in physics yet how can I score good marks in boards suggest any tips or learning methods so that I cover my whole physics syllabus in 2 months till Feb thanks u

Posted by Kartikey Pandey 8 years ago

CBSE > Class 12 > Physics

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Innocent Girl 8 years ago

Hasan r u mad yr us galat raste ?? daal raha hai?

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Sanjana Tyagi 8 years ago

Shafat u r doing wrong . is this the way u talk to others???? ??

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Tanuja Biswas 8 years ago

Do not ever go for suicide or any wrong step. Life is very long and there are problems at every step. Dont fear from them. Try to find solutions and no one can stop you from getting success. Who actually get success in life are those who have faced challenges and overcome them .....for ur answer, i would first suggest be happy, calm and mentally prepare urself for hard work. Physics takes a bit more of concentration and hard work but it doesnt means its impossible to do. Anyone can do it. Second thing is make one plan. Do easiest chapters first which will at least make you passed then go for slight difficult ones. I ll suggest that first go for second book u cn complete it soon. Then do em waves of first book. And then start from chapter 1 of first book in a sequence. Solve ncert all questions additional exercise and examples esp. dont leave any of them.

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Komaldeep Kaur 8 years ago

Shafat r u mad eni galt advice kaise de sakte hai app kisi ko

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Shafat Hasan 8 years ago

Suicide is the only way to get full mark in exam so do it my friend good bye

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What do you understand by the statement light from the sun is unpolarised ' . How does sunlight gets polarised by the process of scattering ?

Posted by Kajal Shukla 8 years ago

CBSE > Class 12 > Physics

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Determine the charge and energy on a capacitor when r = 2 ohm

Posted by Kanishka Singhal 8 years ago

CBSE > Class 12 > Physics

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How to 100%marks in physics

Posted by Nishtha Kukreja 8 years ago

CBSE > Class 12 > Physics

2 answers

Harsh Tyagi 8 years ago

go and start studying without tension

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Vibin Das 8 years ago

With experimental studies

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How do holes act as positive charge carriers?

Posted by Singh Ekku 8 years ago

CBSE > Class 12 > Physics

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What is the sol. For If two monochromatic radiation of frequency v1 and v2 (v1>v2) and having the same intensity are incident on a photosensitive surface to cause photoelectric emission. Explain in which case (1) more no.of electrons will be emitted. (2) Kinetic energy of the emitted photoelectrons will be more..

Posted by Kiran Saroj 8 years ago

CBSE > Class 12 > Physics

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using bohr midel calculate electric current created by the electron when h atom is in ground state

Posted by Nikhil Kalkhanday 8 years ago

CBSE > Class 12 > Physics

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Lens and mirror combination , explain

Posted by Vikas Yadav 8 years ago

CBSE > Class 12 > Physics

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What are the important derivatives for board 2018

Posted by Shweta Kumari 8 years ago

CBSE > Class 12 > Physics

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What is gravity

Posted by Kunal Roy 8 years ago

CBSE > Class 12 > Physics

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relation of conservation of energy by snell law

Posted by Tanuja Rawat 8 years ago

CBSE > Class 12 > Physics

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Define quality factor of lcr circuit

Posted by Vidisha Padh 8 years ago

CBSE > Class 12 > Physics

1 answers

Sanket Sarkar 8 years ago

Quality factor of a circuit is defined as the ratio of energy stored in the circuit to the energy loss per cycle at resonance in the circuit. Q=(Energy stored)/(Energy loss per cycle)

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Why the voltage we apply for commercial purposes is multiple of 11???

Posted by Tushar Atlas 8 years ago

CBSE > Class 12 > Physics