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Theorems on Composition of Functions

Inverse of a Bijective Function

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Applications of Gauss' Law - Infinite Straight Wire

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General Characteristics

Electrical Properties: Conduction In Semiconductors

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  • Electrostatic

    Q

    Kindly post your question again as the question is missing.

    A
  • Surface of Chemistry

    Q

    Image result for what are the effects of temperature and pressure on physisorption and chemisorption?explain with the help of graphs. edit Answer

    A
  • The Solid State

    Q

    A
  • The solid State

    Q

    Hint:
    Total number of atoms in fcc unit cell = 4.
    Use,
    Density of unit cell =Mass of unit cellVolume of unit cellMass of unit cellVolume of unit cellMass of unit cellVolume of unit cell

    Volume of unit cell = (500x 10^-10cm)^3

    Calculate the mass of the unit cell. Multiply with Avogadro no. to get molar mass

    A
  • Wave Optics

    Q

    Then you would have to define the value of n in a different way. Currently, it implies odd values.

    A
  • Integration

    Q

    Solution:-
    We can write the given integral as:-


    By applying byparts rule:-





    A
  • Electric Charges and Fields

    Q

    -ve Y axis

    A
  • Current Electricity

    Q

    A cell of emf E and internar resistance r is connected across a variable resistance R.

    A
  • Relations and Functions

    Q

    Solution:-
    A relation R on a set A is said to be an equivalence relation on A iff

    i) It is reflective.
    ii) It is symmetric.
    iii) It is transitive.

    Reflexive relation:- A relation R on a set A is said to be reflexive if for every x ∈ A,(x,x) ∈ R.
    Example :
    Let A = {1,2,3} then, R = {(1,1), (1,2), (2,2), (3,3), (2,3)} is a reflexive on A.

    Symmetric relation:-
    A relation R on a set A is said to be symmetrical if for every (x, y) ∈ R,(y,x) ∈ R.
    Example :
    Let A = {1,2,3}. Then R = {(1,1), (1,2), (2,2), (2,1), (3,3)} is a symmetrical relation on A.

    Transitive relation:- A relation R on a set A is said to be transitive if (x,y) ∈ R and (y, z) ∈ R, then (x,z) ∈ R.
    Example :
    If A = {1,2,3}, then the relation on set A, R = {(1,1), (1,2), (1,3), (2,1), (3,1), (2,2), (2,3), (3,2), (3,3)} is a transitive relation.



    A
  • Integrals

    Q

    Image result for integration of tanx

    A

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