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    • Posted by Arunima Kaushal 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Himanshu Yadav 5 years, 10 months ago

    Potentiometer

    1Thank You

    Khuskaran Sidhu 5 years, 10 months ago

    Potentiometer

    0Thank You

    ANSWER

    • Posted by Manoj Kumar 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 4 answers

    Harsh Phogat 5 years, 10 months ago

    you will get V=[ml/Neeta]×i

    0Thank You

    Harsh Phogat 5 years, 10 months ago

    v=eEt/me equate them

    0Thank You

    Harsh Phogat 5 years, 10 months ago

    I=neav

    0Thank You

    Harsh Phogat 5 years, 10 months ago

    let drift speed be v

    1Thank You

    ANSWER

    • Posted by Satendra Kumar 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Khuskaran Sidhu 5 years, 10 months ago

    I= nAeVd l= nAe (Eet /m) I= nAe^2Et/m I=nAe^2(V/l) t/m I = V/(ml/nAe^2t ) I =V/R 〓 V=IR Where R= ml/nAe^2t=rho l/A

    0Thank You

    ANSWER

    • Posted by Aditya Vinay 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Aditya Vinay 5 years, 10 months ago

    u arsehole

    0Thank You

    Aditya Vinay 5 years, 10 months ago

    fak u

    3Thank You

    ANSWER

    • Posted by Nikhil Negi 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Khuskaran Sidhu 5 years, 10 months ago

    Dev.= A( u-1)

    0Thank You

    Nishu Sahu 5 years, 10 months ago

    Angle of dev.=( i+e)-A

    0Thank You

    ANSWER

    • Posted by Jk Verma 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 7 answers

    Suresh Kumar 5 years, 10 months ago

    Mera hogya can i help you

    1Thank You

    Sonu Rao 5 years, 10 months ago

    Tomorrow is my physics practical

    0Thank You

    Khuskaran Sidhu 5 years, 10 months ago

    Prepare ur favorite topic & also read current electricity & semiconductor s

    1Thank You

    Khursed Alam 5 years, 10 months ago

    what is resonating frequancy

    0Thank You

    Nikhil Negi 5 years, 10 months ago

    Today is my physics practical

    0Thank You

    Neha Choudhary 5 years, 10 months ago

    Prepare any one chapter of theory

    2Thank You

    Prashant Kumar 5 years, 10 months ago

    They are ask questions related to your class practical and project . Suppose u have do practical related to ray optics thrn they ask from ray optic like defination, law , difference etc

    2Thank You

    ANSWER

    • Posted by Abhishek Kumar 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Jd Chouhan 5 years, 10 months ago

    If you will not prepare theory then you becomes fail

    0Thank You

    ANSWER

    • Posted by Mayank Chaudhary 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivraj Singh Rathore 5 years, 10 months ago

    Max. 15 no.

    0Thank You

    ANSWER

    • Posted by Prashant Bhati 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Neha Choudhary 5 years, 10 months ago

    Can u explain in short ??

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    Doppler’s effect

    • Doppler Effect is the shift in frequency of light when there is relative motion between the source and observer.
    • It is used to measure the speed of a receding object.
    • When the source is moving away from the observer then the wavefronts have to travel a greater distance to reach the observer.
    • When a star is moving away from the earth the wavelength in the middle of the visible region of the spectrum moves towards the red end of the spectrum.
    • As a result star looks more reddish when moves away from the earth.
    • This is known as red shift phenomenon.
    • When the waves are received from a sourcemoving towards the observer, there is an apparent decrease in wavelength. This is called blue shift.
    • The fractional change in frequency (Δν/ν)=(–vradial/c),
    • Where vradial= component of the source velocity along the line joining the
    • observer to the source; vradial is considered positive when the source moves away from the observer.
    • Thus, the Doppler shift can be expressed as:
    • (Δν/ν) = (–vradial/c);
    • It is valid when the speed of the source is small compared to that of light.

    2Thank You

    ANSWER

    • Posted by Siddharth Singh 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Chirag Sharma 5 years, 10 months ago

    1/R(equivalent)=1/R(1)+1/R(2) E(equivalent)= E(1)R(2)+E(2)R(1)/R(1)+R(2)

    0Thank You

    ANSWER

    • Posted by Siddharth Singh 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivraj Singh Rathore 5 years, 10 months ago

    Then what will we do plz write full or proper query

    0Thank You

    ANSWER

    • Posted by Shashank Singh 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Jd Chouhan 5 years, 10 months ago

    Those substance which act as insulator at 0 kelvin tempreture but as we increase the tempreture they behave like as conductor and forbidden gap between them is 1 ev approxx

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    Semiconductors are those substances whose conductivity lies between conductors and insulators. e.g., germanium, silicon, carbon etc.

    2Thank You

    ANSWER

    • Posted by Allen Rathi 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 3 answers

    Jd Chouhan 5 years, 10 months ago

    Yes

    0Thank You

    Shivraj Singh Rathore 5 years, 10 months ago

    No

    0Thank You

    Neha Choudhary 5 years, 10 months ago

    No

    1Thank You

    ANSWER

    • Posted by Antara Chowdhury 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Neha Choudhary 5 years, 10 months ago

    If eddy current is more energy is lost in the frm of heat

    0Thank You

    Adi Kumar 5 years, 10 months ago

    It can be reduced by using laminated soft iron core

    0Thank You

    ANSWER

    • Posted by Allen Rathi 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 3 answers

    Shivraj Singh Rathore 5 years, 10 months ago

    No

    0Thank You

    Amit Mishra 5 years, 10 months ago

    Yes in class 12th

    0Thank You

    Anurag Kaurav 5 years, 10 months ago

    No

    0Thank You

    ANSWER

    • Posted by Satyam Singh 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Priya Dharshini ? 5 years, 10 months ago

    Ya.. it depends upon ur school.. and ur teachers.... if ur teachers are good.. u can ask they can give u.. but strict dont even try to ask..

    1Thank You

    Anurag Kaurav 5 years, 10 months ago

    Its totally depends on your school if they want to tell you they will

    1Thank You

    ANSWER

    • Posted by Harsh Rawat 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Charan Hansda 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Vanya Singh 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Adi Kumar 5 years, 10 months ago

    No it is out of syllabi and not come in exam

    1Thank You

    ANSWER

    • Posted by Ashish Sao 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Priya Sharma 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 3 answers

    Adalat Vishwakarma 5 years, 10 months ago

    Also indicate small definition while reading ncert book

    0Thank You

    Priya Sharma 5 years, 10 months ago

    Thank you

    0Thank You

    Ã♥╣[-_-]╠♥J ??? 5 years, 10 months ago

    Practice sample papers and solve objectives from ncert book because nothg will come out of from ncert book

    0Thank You

    ANSWER

    • Posted by Manoj Kumar Yadav 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Suraj Sharma 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Yeshwanth Yesh 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Prashant Kumar 5 years, 10 months ago

    First of all relax and follow below tips Total 9 units hai which consists 14 chapters and as you just want to pass in physics so, I would recomend you to choose easily chapter as per your mentality and complete those chapters firstly. Then cover few most imp topics which is frequently asked in papers . Easily will score good marks Best of luck

    2Thank You

    ANSWER

    • Posted by Rajdeep Prajapati 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Adi Kumar 5 years, 10 months ago

    Learn all theory

    0Thank You

    ANSWER

    • Posted by Kriti Sharma 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Tejaswani Bhargav 5 years, 10 months ago

    Dielectric is an insulator but they are not same

    0Thank You

    Gopal Mishra 5 years, 10 months ago

    No. The dielectric store the energy and insulator blocks the flow of electron

    3Thank You

    ANSWER

    • Posted by Luv Kapoor 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Adi Kumar 5 years, 10 months ago

    That is in presence of light or in absence of light

    0Thank You

    Adi Kumar 5 years, 10 months ago

    1.Full form 2.when ldr works

    0Thank You

    ANSWER

    • Posted by Kamla Shankar 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Aniya Pal 5 years, 10 months ago

    Area which is free from electicfield .

    0Thank You

    ANSWER

    • Posted by Kriti Sharma 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Yuvraj Singh 5 years, 10 months ago

    Induction is a general phenomenon where charges are induced in a body when another charged body is brought near it. Polarization on the other hand is one of the means induction happens in dielectrics. That is, induction is the process. Polarization is one of the means to do it

    0Thank You

    ANSWER

    • Posted by Kriti Sharma 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 5 answers

    Sanatabassum Tabassum 5 years, 10 months ago

    Thanks

    0Thank You

    Gopal Mishra 5 years, 10 months ago

    Dont, worry. You guys. Please make a time table for 3,4 days and complet this tasks. This process apply regularly. And after you follows these tasks you get better result

    1Thank You

    Luv Kapoor 5 years, 10 months ago

    same problem here yrr

    1Thank You

    Rikshesh D. 5 years, 10 months ago

    same here actually

    3Thank You

    Neha Choudhary 5 years, 10 months ago

    Same happens with me

    1Thank You

    ANSWER

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