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    • Posted by Soumadeep Mitra 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Vineit Kumar Gupta 8 years ago

    The above explain is from nutan and i was about to write the same ?

    0Thank You

    Sahiba Bhayana 8 years ago

    When a bar magnet is brought near the coil then according to lenz's law induced current will flow in anticlockwise direction making north pole. Hence work has to be done on moving the magnet which is converted into electrical energy. If lenz's law is not obeyed,then current must flow in clockwise direction making south pole. Hence magnet will gain kinetic energy & electric energy is produced without any expense of energy which is not possible. Hence lenz's law is based on law of conservation of energy.

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    • Posted by Shiva Pandey 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Varun Banda 8 years ago

    λmax1=hcE=6.6×10−34×3×1082×1.6×10−19=6.18×10−7 mλmax2=hcE=6.6×10−34×3×1082.5×1.6×10−19=3.96×10−7 mλmax3=hcE=6.6×10−34×3×1083×1.6×10−19=4.125×10−7 m Given λ=6000A=6×10−7 m

    For detection of optical signal the wavelength of incident energy radiation must be greater. It is true only for D2 .Only D2 can detect the radiation

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    H

    • Posted by Sagar Gulia 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Sp Singh 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Yamin Ganaie 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Jhankar Pani 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Shubh Gupta Shubh Gupta 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by A Shree 8 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Sahiba Bhayana 8 years ago

    Enriched scanner (together) is also best

    1Thank You

    Shivani Arora 8 years ago

    Arihant is also best

    1Thank You

    Tanmay Joshu 8 years ago

    I suggest oswaal .....

    1Thank You

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    • Posted by Priyanker Kumar 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Deepshikha Gupta 8 years ago

    It is a specific type of pn junction having very thin depletion region, reverse biased

    2Thank You

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    • Posted by Amit Kumar 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivang Gupta 8 years ago

    Its too easy ..if u prepare from starting ..but at this time u needed just solve last year que paper numerical ..

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    • Posted by Prabhat Thakur 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Varun Banda 8 years ago

    Capacitance for drop => R/kwhere R is the radii.

    From Volume conservation, Vnet = 64V

    R^3 = 64r^3

    R = 4r

    For big drop, C = R/k.......(1)

    For small dop, 5 = r/k........(2)

    Divdng the eqns. we get,

    C = 5*(R/r) => 5*4 = 20 mF.

     

    2Thank You

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    • Posted by Singh Divya 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Nikhil Sirohi 8 years ago

    principle:-It wotks on the principle of electromagnetic induction . Working:- 1-As the turbine is rotated the coil also starts rotating and due to the presence of strong magnetic field an emf is induced b/w the end of the coil. 2-the direction of induced emf can be known with the help of lenz's law. 3- the current pass through two copper rings R1 &R2 which are atteched to two carbon brushes B1&B2 which also atteched to copper springs. 4-The emf generating is alternating which produce alternating current.

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    • Posted by Sid Gahalot 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Deepshikha Gupta 8 years ago

    U just take deep sleep and give rest and peace to ur mind

    1Thank You

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    • Posted by Harsh Tyagi 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Kunal Sharma 8 years ago

    N.m^2/c^2

    2Thank You

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    • Posted by Harsh Tyagi 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Anjali Jain 8 years ago

    1.34×10^7 positive and same is negative so net is 0

    0Thank You

    Deepshikha Gupta 8 years ago

    Zero

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    • Posted by Gurwinder Dhillon 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Deepshikha Gupta 8 years ago

    Because there's no any reflection due to the absence of the earth's atmosphere at that height

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    • Posted by Suraj Kumar 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Akash Sharma 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Shishupal Jadon 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Tejkiran Kushwaha 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Vanya Singh 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Vineit Kumar Gupta 8 years ago

    *writter

    0Thank You

    Vineit Kumar Gupta 8 years ago

    I don't claim to be written of the content no copyright infrigment intended.

    0Thank You

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    • Posted by Vanya Singh 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Mansi Soni 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Nancy Yadav 8 years ago

    If a system contains a no. Of charges then gorce experienced by a charge is equal to the vector sum of all the forces ecerted on it by a no. Of charges

    0Thank You

    Sunaina Gupta 8 years ago

    Principle of Superposition of Electrostatic Fields. The principle of superposition states that the total resultant electric field at a point is the vector sum of the component fields.

    1Thank You

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    • Posted by Harsh Kumar 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Sudha Gupta 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Vineit Kumar Gupta 8 years ago

    Visualisation is most important. When you rote someting you forget but when you develop an understanding for it . You remember it forever . Like you dont know in ac whether in capacitor xc = (1/wc ) Or xc = wc . But you know that dc current doesnt pass through capacitor and dc have has a frequecy of 0 hertz . You also know that xc decrease with increase in frequency. You got to know that xc = (1/wc ) . The above was just an example and it doesn't actually matter whether you understood it or not . The thing which actually matter is wheither you got my point or not physics is all about simplification and unification and visualisation may be a way to achieve both . At end of the day its you and your way of understanding things. Every individual is different so work on yourself find what you really are and develop your own way of persistant learning. Thanks for reading . Have a good day ☺

    2Thank You

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    • Posted by Abhimanyu Kumar 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Amar Kumar 8 years ago

    Gaussian surface :It is a closed surface in a three dimensional space through which the magnetic flux of any type of vector field can be found, this includes the electric field, the gravitational field, or magnetic field.

    Basically Gaussian surface is an arbitrary closed surface used in accordance with Gauss's law for the particular field (for electricity, gravity, or Gauss' law for magnetism) by applying a surface integral, to calculate the total amount of the quantity of the source enclosed, i.e. the amount of electric charge (q) for of the electrostatic field or the amount of gravitational mass for the source of the gravitational field, or vice versa and then calculate the net fields for the source distribution in physics.

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    • Posted by Abhishek Sharma 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Shivangi Sharma 8 years ago

    ?

    1Thank You

    Vineit Kumar Gupta 8 years ago

    Oh an answer i can give actually . Most of the people say that instagram is a social networking site i say its more than that . Actually Instagram is a mobile, desktop, and Internet-based photo-sharing application and service that allows users to share pictures and videos either publicly, or privately to pre-approved followers. . Here are some interesting facts about facebook owned instagram ... 1> 31 percent of female internet users are on Instagram, compared to 21 percent of male internet users ( this means unlike facebook girls are present in majority ) 2> In terms of marketing instagram rules the internet on an average 50% of total brands are on instagram and on average a person follows about 2 brands . 3> selena gomez is the most followe celebrity on instagram 4> top 5 countries which uses instagram are from europe . 5> the most used emoji on insta is ❤ ( heart ) 6> I have wasted enough of time writing this answer so as a reward do follow me on insta - (VINEET_INSTA ) is my insta user name . Thanka for reading

    1Thank You

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    • Posted by Simran Virdi 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Abhinay Ab 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Prashant Saryal 8 years ago

    Electric field due to electric dipole, guass theorem and applications, potential engery of a point charge, relationship between electric field and electric potential and capacitance

    3Thank You

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    • Posted by Piyush Kumar 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sandesh Verma 8 years ago

    May be

    2Thank You

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