No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Himanshu Shekhar 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yakshi ? 7 years ago

    Yes......???well....it's okk now.......it was my fault to interfere in ur matters.......

    3Thank You

    ANSWER
    hhh

    • Posted by Akash Yadav 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    A S 7 years ago

    ??

    1Thank You

    ANSWER

    • Posted by Akhilesh Achiever 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Dev ..... 7 years ago

    All we are learning here are basics of what we will read in uigher classes..?

    1Thank You

    ANSWER

    • Posted by Jai Singh 7 years ago

    CBSE > Class 11 > Physics
    • 3 answers

    Geetisha Khinchi 7 years ago

    Avneet ... Are these important questions or derivations?!

    1Thank You

    ???. Pragati 7 years ago

    Hope it helps you ?

    2Thank You

    ???. Pragati 7 years ago

    Units and dimensions - parallax method motion in a straight line - derivation of kinematic equations by graphical and calculus method. motion in a plane - vector addition, equation of path of projectile including max height, horizontal range and time of flight, uniform circular motion-expression of centripetal acceleration. laws of motion-derivation of first and third law from second law, impulse-momentum theorem, conservation of momentum, relation between angle of friction and angle of repose with resultant acceleration and contact force, motion of a car in leveled road and banked road, bending of cyclist on level road. work, energy and power - expression for KE by calculus method, work-energy theorem for a constant and variable force, motion in vertical circle, PE of a spring, one dimension collision(elastic and inelastic), two dimension collision(elastic and inelastic). system of particles and rotational motion - relations between rotational and linear motion, relation between torque and angular momentum and moment of inertia, mechanical advantages, conservation of angular momentum, rolling motion(energy, velocity, acceleration and time). gravitation - kepler’s laws, relation between g & G, g value above and below the surface of the earth, escape velocity and orbit velocity. mechanical properties of solids - relation between young’s modulus, bulk modulus, shear modulus and poisson’s ratio. mechanical properties of fluids-variation of pressure and depth, Archimedes principle, equation of continuity, bernoulli’s theorem, speed of efflux, venturimeter, terminal velocity, drops & bubbles. thermal properties of matter - linear, areal, volume expansion, thermal stress, newtons law of cooling. thermodynamics - Cp - Cv = R, work done in isothermal, adiabatic process, carnot engine. kinetic theory - law of equipartition of energy, degree of freedom. oscillations - SHM(displacement,velocity,acceleration,amplitude and intensity), spring combinations, time period of simple pendulum, energy in SHM. waves - doppler effect.

    2Thank You

    ANSWER

    • Posted by Ankit Singh 7 years ago

    CBSE > Class 11 > Physics
    • 2 answers

    ???. Pragati 7 years ago

    a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent.

    2Thank You

    Ayushi Ayushi 7 years ago

    The Reynolds number (Re) is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations. At low Reynolds numbers, flows tend to be dominated by laminar (sheet-like) flow, while at high Reynolds numbers turbulence results from differences in the fluid's speed and direction, which may sometimes intersect or even move counter to the overall direction of the flow (eddy currents).

    2Thank You

    ANSWER

    • Posted by Himanshu Shekhar 7 years ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ankit Singh 7 years ago

    A gradient is a vector, and slope is a scalar. Gradients really become meaningful in multivarible functions, where the gradient is a vector of partial derivatives. With single variable functions, the gradient is a one dimensional vector with the slope as its single coordinate (so, not very different to the slope at all).

    3Thank You

    Yakshi ? 7 years ago

    The degree of inclination or the rate of ascent and descent is gradient while slope is often used to describe the measurement of the steepness,gradient, incline or grade of a straight line

    3Thank You

    ANSWER

    • Posted by Jai Singh 7 years ago

    CBSE > Class 11 > Physics
    • 3 answers

    Akash Choudhary Dav Gandhinagar 7 years ago

    All chapters

    1Thank You

    Ankit Singh 7 years ago

    Which chapter ????

    1Thank You

    Yakshi ? 7 years ago

    I can tell u but from which chapter????

    4Thank You

    ANSWER

    • Posted by Ishant Pathania 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yakshi ? 7 years ago

    REAL IMAGE:- 1)light rays actually meet to form a real image. 2) is generally inverted 3)can be obtained on a screen 4) this image is in front of mirror and behind the lens 5) we can reach on it Example....cinema screen............VIRTUAL IMAGE:- 1)light do not actually meet to form virtual image 2) is erect 3) image cannot be obtained on the screen 4)behind the mirror and in front of lens 5) we cannot reach to it Example....our image in plane mirror......hope it will help u?

    3Thank You

    ANSWER

    • Posted by Christin Mathew 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ruru ❤️ 7 years ago

    Banking of road increasing the height of road from one side its significance is that it RESUCES friction eg.. on CAR TRACKS

    4Thank You

    ANSWER

    • Posted by Saba Elias 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ayushi Ayushi 7 years ago

    Here, initial velocity = u           final velocity = 0 (at max. height, velocity is 0)           height covered = h            acceleration due to gravity = g  Using the law of kinematics : v² - u² = 2as we get -u² = -2gh (considering upward direction as positive, "g" is always                                              downward)  Thus, we get h = u²/2g

    5Thank You

    ANSWER

    • Posted by Saba Elias 7 years ago

    CBSE > Class 11 > Physics
    • 5 answers

    Ayushi Ayushi 7 years ago

    Since the net upward force must be equal to the net downward force. So, buoyant force = mg=50x9.8=49kgf

    3Thank You

    Ayushi Ayushi 7 years ago

    Can you see the answer again. Is it 49kg f?

    3Thank You

    Saba Elias 7 years ago

    Sorry sis but in the book it is given the option with the answer 49N is right but there is no solution here

    1Thank You

    Ayushi Ayushi 7 years ago

    Mass of body = 50kg volume = 0.049 m^3 Since the density of body is more than density of water, it will sink. When it sinks, it will displace equal volume of water. So volume of water displaced = 0.049 m^3 mass of water = density × volume = 1000×0.049 = 49kg buoyancy = weight of water displaced => buoyancy= mg => buoyancy= 49×10 = 490N Hence, buoyant force is 490N

    4Thank You

    Ayushi Ayushi 7 years ago

    The buoyant force is 490 N.

    3Thank You

    ANSWER

    • Posted by Saba Elias 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yogita Ingle 7 years ago

    Mud houses have thatched roofs.The insulating effect of the thatch prevents heat getting in very quickly (cool in summer) and heat getting out very quickly (warm in winter).
    Secondly, mud houses are made up of mud, which has large pores. So the evaporation is more in mud houses. As evaporation causes cooling, mud houses feel cooler in summers.

     

    2Thank You

    ANSWER

    • Posted by Nrusingha Pradhan 7 years ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ayushi Ayushi 7 years ago

    Answer- steel Reson- By the definition, steel is more elastic than rubber because steel comes back to its original shape faster than rubber when the deforming forces are removed. Elasticity In Physics And In Common Life: In common life we label a substance as more elastic if it can be stretched more than others

    3Thank You

    @@Ditya ®°@Thore????? 7 years ago

    Steel

    1Thank You

    ANSWER

    • Posted by Christin Mathew 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Guru Deep 7 years ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ayushi Ayushi 7 years ago

    The acceleration due to gravity depends on the mass of the body, the distance from the center of mass, and a constant G, which is called the "universal gravitational constant". Its value is = 6.673 x 10-11 N. m2/kg2. g=GM/ r^2

    2Thank You

    Christin Mathew 7 years ago

    Acceleration due to gravity is 9.8 m/s2.

    0Thank You

    ANSWER

    • Posted by Pratya Arora 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Navya Sajin 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Miti Agrawal 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ayushi Ayushi 7 years ago

    as the wave is "standing", so the wave velocity should be 0. ... In the other hand, the energy transmitting along a standing wave is zero if we treat the standing wave as two traveling waves at opposite directions! Then it applies that the velocity of standing wave is zero.

    4Thank You

    ANSWER

    • Posted by Rounak Singh Rajput 7 years ago

    CBSE > Class 11 > Physics
    • 2 answers

    @@Ditya ®°@Thore????? 7 years ago

    Don't upload name of any girl understand

    1Thank You

    Nancy Rajput 5 years, 8 months ago

    don't upload my name if you want help then I help u

    2Thank You

    ANSWER

    • Posted by Ankit Singh 7 years ago

    CBSE > Class 11 > Physics
    • 5 answers

    Ayushi Ayushi 7 years ago

    Your wellcome

    2Thank You

    Ankit Singh 7 years ago

    Ok

    2Thank You

    Ayushi Ayushi 7 years ago

    And for you knowledge - The mechanical equivalent of heat was a concept that had an important part in the development and acceptance of the conservation of energy and the establishment of the science of thermodynamics in the 19th century.

    1Thank You

    Ankit Singh 7 years ago

    Again thanks ayushi

    1Thank You

    Ayushi Ayushi 7 years ago

    In the history of science, the mechanical equivalent of heat states that motion and heat are mutually interchangeable and that in every case, a given amount of work would generate the same amount of heat, provided the work done is totally converted to heat energy.

    1Thank You

    ANSWER

    • Posted by Tarang Banjare? 7 years ago

    CBSE > Class 11 > Physics
    • 7 answers

    Ankit Singh 7 years ago

    What is your question .........

    0Thank You

    Tarang Banjare? 7 years ago

    Hyy......my ques. Is....

    0Thank You

    Ankit Singh 7 years ago

    ??

    0Thank You

    Yakshi ? 7 years ago

    Shoot it!

    2Thank You

    Priya Dharshini ☺☺ 7 years ago

    Which question ?

    1Thank You

    Ankit Singh 7 years ago

    Yes tell

    0Thank You

    Nancy Rajput 7 years ago

    yes tell

    0Thank You

    ANSWER

    • Posted by Arquam Shaikh 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Saba Elias 7 years ago

    Angular momentum

    1Thank You

    ANSWER

    • Posted by Pratham Bhargava 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Rounak Singh Rajput 7 years ago

    CBSE > Class 11 > Physics
    • 7 answers

    Priya Dharshini ☺☺ 7 years ago

    Hello brother

    2Thank You

    Nancy Rajput 7 years ago

    hlo

    0Thank You

    Tarang Banjare? 7 years ago

    Hyy

    0Thank You

    ???. Pragati 7 years ago

    Hi??

    1Thank You

    Ankit Singh 7 years ago

    Fine bro and how are u ???

    0Thank You

    Anurag Rana 7 years ago

    fine and how are you

    0Thank You

    Charan Hakmaosa 7 years ago

    What is molecular physics

    2Thank You

    ANSWER

    • Posted by Vaishnavi Tiwari 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by David Kumar 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by David Kumar 7 years ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Anjana Kanwar 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ayushi Ayushi 7 years ago

    In the argument, other previously established statements, such as theorems, can be used. In principle, a proof can be traced back to self-evident or assumed statements, known as axioms, along with accepted rules of inference.

    4Thank You

    ANSWER

    • Posted by Lakshya Jhangra 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Gaurav Seth 7 years ago

    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.

    1Thank You

    ANSWER

    • Posted by Krishna Mandal 7 years ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ayushi Ayushi 7 years ago

    Center of Mass refers to a point where whole body’s mass is concentrated. If there are two masses (m1, m2) separated by distances x1 and x2 from a fixed point. The Center of Mass (X) is expressed by X=m1x1 +m2x2/ m1+m2 If there are n number of masses (m1, m2,..mn) having distances x1, x2,……xn then the Center of mass (X) is expressed by X =m1x1+m2x2+.................mnxn/ m1+m2+...mn

    2Thank You

    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2025