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    • Posted by Nimrat. P. 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Sanskriti S 7 years ago

    Wheatstone bridge, potentiometer, cyclotron, moving coil galvanometer, ac generator, nuclear reactor, half & full wave rectifier

    0Thank You

    Sakshi Tomar 7 years ago

    Cyclotrone Moving coil galvanometer Transformer Ac generator

    0Thank You

    Tamanna Kapoor 7 years ago

    Moving coil G, torroid, solenoid, PM, AC Generator, microscope, telescope,

    0Thank You

    ANSWER

    • Posted by Vedika Bisht 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Sanskriti S 7 years ago

    'cause electric field inside conductor is zero - from gauss law : E. ds=0 (since E is zero)=> q/€° =0 =>q=0, ie, charge inside is zero.

    0Thank You

    Abbas Ali???? 7 years ago

    since they drift towards its surface

    0Thank You

    ANSWER

    • Posted by Dayir Chiram 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Deep Bal 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Mujib Rahman 7 years ago

    CBSE > Class 12 > Physics
    • 5 answers

    G K 7 years ago

    Nivetha is right...

    1Thank You

    Sanskriti S 7 years ago

    i think que is incomplete..

    0Thank You

    Nivetha Vijayakumar 7 years ago

    Ofcourse convex lens is a converging lens but in a special case when *(the refractive index of the surrounding medium is greater than the refractive index of lens material) then is acts as diverging lens. Likewise in concave lens for the same condition*() mentioned above it acts as converging lens.

    1Thank You

    Sanskriti S 7 years ago

    hey, u 're wrong.... convex lens is converging, not diverging!!

    0Thank You

    Nivetha Vijayakumar 7 years ago

    The reason is that, the refractive index of the medium is greater than the refractive index of the lens. Hence, it acts as diverging lens.

    0Thank You

    ANSWER

    • Posted by Ravinder Singh 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sanskriti S 7 years ago

    smart work, along with hard work... pdh k to sab aate h!!

    1Thank You

    ANSWER

    • Posted by Deep Bal 7 years ago

    CBSE > Class 12 > Physics
    • 5 answers

    Nitika Neb 7 years ago

    Transistor as a switch is not in syllabus of cbse we have to do oscillator

    2Thank You

    Deep Bal 7 years ago

    Plz tell which topics we have to do in transistor

    0Thank You

    Deep Bal 7 years ago

    But in this app they had only given transistor as an amplifier in cbse syllabus

    0Thank You

    Akash Porwal 7 years ago

    No its out of syllabus .if u need knwledge than u can go through it

    1Thank You

    Utsav Aryan 7 years ago

    Yes

    2Thank You

    ANSWER

    • Posted by Nivetha Vijayakumar 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Nivetha Vijayakumar 7 years ago

    No thanks. I understood. Thanks for your guidence.

    0Thank You

    Nivetha Vijayakumar 7 years ago

    Thank u but may i know the reason pls.

    0Thank You

    Aayushi Srivastava 7 years ago

    attractive force

    1Thank You

    ANSWER

    • Posted by Mohit Singh 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Akash Porwal 7 years ago

    Then using braggs law u can find lamfa

    0Thank You

    Akash Porwal 7 years ago

    In this electron gun ejects electrons and strike on nickel crystall and a rotating detector is placed and we determine the deviated angle

    1Thank You

    ANSWER

    • Posted by Yash Bhavsar 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Diksha Kharwal 7 years ago

    https://www.topperlearning.com/doubts-solutions/derive-an-expression-for-electric-intensity-due-to-electric-dipole-along-axial-line-and-equitorial-line-u0k14p22

    1Thank You

    ANSWER

    • Posted by Jahangir Siddiqui 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Nivetha Vijayakumar 7 years ago

    Bro i don't think this topic is important coz it is used only to differentiate b/w para-, dia-, & ferro- magnetic substances. Also that will be asked only for 4 marks(max.) for which max. of 3 points are enough with an example of each.

    0Thank You

    Nivetha Vijayakumar 7 years ago

    It states that the magnetisation of a paramagnetic substance is inversely proportional to the absolute temperature. I = C (B0/T).

    1Thank You

    ANSWER

    • Posted by Nidhi Chauhan 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Mehwish Kehkeshan 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    G K 7 years ago

    Do sample paprs?

    2Thank You

    Vitthal Gupta 7 years ago

    learn derivation and some important point definitions take over view of all chapter from ncert and by guide learn the formula also

    2Thank You

    ANSWER

    • Posted by Neha Pachani 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Nivetha Vijayakumar 7 years ago

    Optical Fibres: This also uses TIR. Here the refractive index of the core must be higher than that of cladding. So, when the signal in the form of light is directed from one end at a suitable angle, it undergoes repeated TIR and comes out from the other end. Therefore, no absorption of light takes place. (Core refers to the inner space of the tube, cladding refers to the material of the outer coating) Uses: Transmitting electrical & optical signals, decorative lamps, etc.

    1Thank You

    Nivetha Vijayakumar 7 years ago

    Right angled isoceles prism: These prism turn the light by 90°or 180°. They are based on the phenomenon of total internal reflection of light. The refractive index for glass is 1.5, therefore the critical angle for glass - air interface is 42° (as refractive index = 1/sin ic). When the angle of incidence is > 42°, for example, 45° the total internal reflection takes place. Uses: to invert the image without changing the size(TIR).

    1Thank You

    ANSWER

    • Posted by Akash Joshi 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    G K 7 years ago

    Sample papr kro dost ...

    0Thank You

    ANSWER

    • Posted by Kunal Sharma Bhardwaj 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Anukriti Gupta 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Anjali Sharma 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Akash Joshi 7 years ago

    No

    1Thank You

    Sakshi Singh 7 years ago

    Nope

    1Thank You

    Vibhor Shandilya 7 years ago

    No

    1Thank You

    ANSWER

    • Posted by Meghaa Govidaraju 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Abhinav Tiwari 7 years ago

    If electric feild lines intersect each other then electric field has two tangential direction which is not possible so they never interesect each other

    1Thank You

    Vibhor Shandilya 7 years ago

    Cause at point of intersection their are 2 different direction of electric field which is not possibel

    0Thank You

    ANSWER

    • Posted by Kartik Sharma 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Amal Roshan 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Osotot Sharma 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Ak Chaudhary 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Aayushi Srivastava 7 years ago

    band pass filter the frequency of high and low ramge...and pass only bands of frequency....

    0Thank You

    ANSWER

    • Posted by Ak Chaudhary 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Ak Chaudhary 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Aayushi Srivastava 7 years ago

    used in electronic devices ...can be used as fastest photodetector as it can turns it current on and off

    0Thank You

    ANSWER

    • Posted by Khushal Vaid 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Moti Satapathy 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Riya Singhal 7 years ago

    Gauss theorem&lenz law also imp.

    0Thank You

    Nitika Neb 7 years ago

    Cyclotron,solonoid ,compound microscope,astronomical telescope,ac generator,youngs double slit experinment

    1Thank You

    ANSWER

    • Posted by Abhishek Dwivedi 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Nitika Neb 7 years ago

    The radioactive decay law states that the probability per unit time that a nucleus will decay is a constant, independent of time. The radioactive decay of certain number of atoms (mass) is exponential in time. Radioactive decay law: N = N.e-λt. The rate of nuclear decay is also measured in terms of half-lives

    1Thank You

    ANSWER

    • Posted by Sarwesh Tiwari 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Shivam Keshri 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Mahaalakshmi Vijayamoorthy 7 years ago

    If the driving cell does not have voltage greater than the other cells, no null point can be obtained and it lies outside the length of the wire.

    3Thank You

    ANSWER

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