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    • Posted by Shivam Keshri 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sanskriti S 7 years ago

    yeah

    1Thank You

    ANSWER

    • Posted by Shivang Bharadwaj 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Shivang Bharadwaj 7 years ago

    Sure

    0Thank You

    Shivam Keshri 7 years ago

    More than 55 marks theory& derivations

    0Thank You

    ANSWER

    • Posted by Avani Garg 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Mandeep Singh 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Kartik Periwal 7 years ago

    After 200 min

    0Thank You

    ANSWER

    • Posted by Shriya Gautam 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Harsh Kumar 7 years ago

    Babu theorm or instruments pe focus karo

    1Thank You

    Prachi Jindal 7 years ago

    You must focus on theory only. Numericals come for 15-16 marks and formulaes too carry their own weightage. Try to learn them if possible to gain extra marks or else try focusing only on theory.

    1Thank You

    Suhani Rana? 7 years ago

    Theory because it cover 50 to 55 marks and numerical cover 15 to 20 marks

    2Thank You

    ANSWER

    • Posted by Alwin Jomon 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Prachi Jindal 7 years ago

    Start with section D first. Write all the formulaes and make the diagrams accordingly. For num. write given and the formula used and for conceptuals part 0.5 marks is awarded for reasoning so a short precise para would work

    2Thank You

    ANSWER

    • Posted by Amit Jasrotia 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivam Keshri 7 years ago

    Read Electromagnetic Waves from NCERT part 1

    1Thank You

    ANSWER

    • Posted by Rajat Panwar 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Sanskriti S 7 years ago

    most imp one is Bohr atomic model. Others : atomic spectra nd de broglie's exp. well, there are rarely total of 5-6 topics in this ch

    0Thank You

    G K 7 years ago

    I also think the same Sanskriti

    2Thank You

    Sanskriti S 7 years ago

    i think he's asking for imp topics of atom?!

    1Thank You

    ANSWER

    • Posted by Rajat Panwar 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sanskriti S 7 years ago

    hertz nd lenard obs. , all the graphs, Einstein's eq. all the raltions such as lambda=h/mv nd Davisson nd Germer exp. (only explanation)

    1Thank You

    ANSWER

    • Posted by Harsha Phansalkar 7 years ago

    CBSE > Class 12 > Physics
    • 5 answers

    Sanskriti S 7 years ago

    see in syllabus nd revision notes in this app

    0Thank You

    Harsha Phansalkar 7 years ago

    Topics of each chapter

    0Thank You

    Sanskriti S 7 years ago

    points ??!!

    0Thank You

    Harsha Phansalkar 7 years ago

    Can you tell the name of points

    0Thank You

    Sanskriti S 7 years ago

    so many derivations!!!!!

    0Thank You

    ANSWER

    • Posted by Tanuj Chaudhary 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Kartik Periwal 7 years ago

    It states that the magnetic field due to current carrying conductor is directly proportional toh the current I and the element length dl and inversely proportional toh the square of the distance r

    1Thank You

    Harsha Phansalkar 7 years ago

    Refer NCERT textbook

    0Thank You

    ANSWER

    • Posted by Lalit Choudhary 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sanskriti S 7 years ago

    dMax. = under root 2R hT + under root 2 R hR, where hT nd hR are height of transmitting nd receiving antenna resp.

    1Thank You

    ANSWER

    • Posted by Swati Karanwal 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Ash Thunderbird ✔ 7 years ago

    Rotational Analogue of Force

    3Thank You

    Sanskriti S 7 years ago

    moment of force; the measure of force which causes an object to rotate about an axis

    1Thank You

    Harsha Phansalkar 7 years ago

    When two equal forces with opposite magnitude act on the same body but on different points, they produce a couple and start rotating the body this coupling moment is known as torque

    1Thank You

    ANSWER

    • Posted by Singh Shahab 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Muskan Singla 7 years ago

    These r produced by heat bodies

    1Thank You

    Harsha Phansalkar 7 years ago

    The molecules of substances(specifically water ) easily absorb these waves and gain thermal energy thus infrared are called heat waves

    1Thank You

    Sanskriti S 7 years ago

    their absorption causes heating effect

    1Thank You

    ANSWER

    • Posted by Aditya Shukla 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Harsha Phansalkar 7 years ago

    Use the formula d=√2Rh

    0Thank You

    ANSWER

    • Posted by Gourav Singh 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sanskriti S 7 years ago

    when unpolarized light is incident at polarizing angle ip, on an interface separating air from a medium of refr. index u, then reflected light is full polarized (perpendicular to plane of incidence) provided u=tan ip.

    1Thank You

    ANSWER

    • Posted by Akash Joshi 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Shivam Keshri 7 years ago

    There's no such topic bro

    0Thank You

    Vaibhav Rajput 7 years ago

    Just complete any one book of physics either part-1 or part-2

    2Thank You

    ANSWER

    • Posted by Shivam Kumar 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivam Keshri 7 years ago

    Part one ke saare derivations kr lo...especially from electrostatics and magnetism

    1Thank You

    ANSWER

    • Posted by Shivam Keshri 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Sanskriti S 7 years ago

    magnetostriction

    1Thank You

    Harsha Phansalkar 7 years ago

    The expansion and contraction of iron core of transformer causes a audible humming sound which results in loss of energy

    2Thank You

    ANSWER

    • Posted by Jay Roul 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Shivam Keshri 7 years ago

    Derivation of course...because derivation and theory consist around 55 marks in the paper whereas there are only 15-20 marks of numericals

    3Thank You

    Sanskriti S 7 years ago

    numericals carry max if 15-20 marks, better u focus on theory nd derivations 'cause numericals demand practice!! Well, it's just a suggestion.

    2Thank You

    ANSWER

    • Posted by Reet Sahani 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Harsha Phansalkar 7 years ago

    Use formula d=√2Rh , Where , d= range R = radius of earth h = height of antenna

    0Thank You

    ANSWER

    • Posted by Nivetha Vijayakumar 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Shivam Keshri 7 years ago

    CE Transistor, Zener Diode, pnp & npn transistor

    1Thank You

    Suhani Rana? 7 years ago

    Amplifier is the most important and then rectifier,zener diode..

    1Thank You

    Harsha Phansalkar 7 years ago

    Transistors is the most IMP topic

    1Thank You

    ANSWER

    • Posted by Raj Aryan 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Anamika Verma 7 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Shivam Keshri 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Nivetha Vijayakumar 7 years ago

    Energy is stored inbetween the plates of the capacitor.

    1Thank You

    ANSWER

    • Posted by Armaan Ansari 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Harsha Phansalkar 7 years ago

    1.All waves of electromagnetic spectrum have two wavefronts 1) Electric and 2) Magnetic 2. All waves travel with same speed , i.e. speed of light 3 × 10^8

    1Thank You

    Geeta Vats 7 years ago

    These are transverse waves. These waves travel with speed of light

    1Thank You

    ANSWER

    • Posted by Nivetha Vijayakumar 7 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    G K 7 years ago

    NCERT m jitni bhi h sari krlo....

    1Thank You

    Nivetha Vijayakumar 7 years ago

    Ok thanks. But one thing, our teacher said that only one or two derivations will be asked itseems.

    0Thank You

    Harsha Phansalkar 7 years ago

    We cannot tell that. It is divide equally

    0Thank You

    ANSWER

    • Posted by Siya Gupta 7 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Harsha Phansalkar 7 years ago

    We can derive it by using hygens principle i.e. Sin(i)/Sin(r) = u(constant)

    0Thank You

    Shivam Keshri 7 years ago

    Refer to NCERT part 2 ray optics for normal derivation and wave optics for derivation using huygens principle

    0Thank You

    ANSWER

    • Posted by Siya Gupta 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivam Keshri 7 years ago

    Defination isn't gonna come

    0Thank You

    ANSWER

    • Posted by Vinay Sharma 7 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sanskriti S 7 years ago

    when beam of light is passed through a medium containing particles whose size are of the order of wavelength of light, it gets scattered nd when seen through a direction perpendicular to dir. of incidence, it is plane polarised.

    1Thank You

    ANSWER

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