Fluid-Mechanics
Easy
Physics

The tension in a sting holding a solid block below the surface of a liquid    as in shown in the figure is T when the system is at rest

Then what will be the tension in the string if the system has upward acceleration a ?

PhysicsFluid-Mechanics

    Answer:The correct answer is:

    Book A Free Demo

    +91

    Grade*

    Related Questions to study


    A loaded 20,000 kg coal wagon is moving on a level track at 6ms to the power of negative 1 end exponent. Suddenly 5000 kg of coal is dropped out of the wagon. The final speed of the wagon is
     

    physicsGeneral
    General
    physics

    The centre of mass of a non uniform rod of length L. Whose mass for unit length varies as rho equals fraction numerator k times x squared over denominator L end fraction where k is a constant and x is the distance of any point from one end is (from the same end)

    The centre of mass of a non uniform rod of length L. Whose mass for unit length varies as rho equals fraction numerator k times x squared over denominator L end fraction where k is a constant and x is the distance of any point from one end is (from the same end)

    physicsGeneral
    electrostatics
    physics

    In the electric field of a point charge q, a certain point charge is carried from point A to B, C, D and E as shown in figure. The work done is

    . For charge q placed at the centre of circle, the circular path is an equipotential surface and hence work done along all paths AB or AC or AD or AE is zero

    In the electric field of a point charge q, a certain point charge is carried from point A to B, C, D and E as shown in figure. The work done is

    physicselectrostatics
    . For charge q placed at the centre of circle, the circular path is an equipotential surface and hence work done along all paths AB or AC or AD or AE is zero
    waves
    physics

    A highly rigid cubical block A of small mass M and side L is fixed rigidly on to another cubical block of same dimensions and of low modulus of rigidity eta such that the lower face of A completely covers the upper face of B. The lower face of B is rigidly held on a horizontal surface. A small force F is applied perpendicular to one of the side faces of A. After the force is withdrawn, block A executes small oscillations, the time period of which is given by-

    According to question
    infinity M to the power of a eta to the power of b L to the power of c

    [M0L0T1] = [M1]a[M1L–1T–2]b[L1]c

    A highly rigid cubical block A of small mass M and side L is fixed rigidly on to another cubical block of same dimensions and of low modulus of rigidity eta such that the lower face of A completely covers the upper face of B. The lower face of B is rigidly held on a horizontal surface. A small force F is applied perpendicular to one of the side faces of A. After the force is withdrawn, block A executes small oscillations, the time period of which is given by-

    physicswaves
    According to question
    infinity M to the power of a eta to the power of b L to the power of c

    [M0L0T1] = [M1]a[M1L–1T–2]b[L1]c

    waves
    physics

    frequency of vibration f of a mass m suspended from a spring of spring constant k is given by relation of the type f = cmx ky, where c is a dimensionless constant. The values of x and y are-

    frequency of vibration f of a mass m suspended from a spring of spring constant k is given by relation of the type f = cmx ky, where c is a dimensionless constant. The values of x and y are-

    physicswaves
    mechanics
    physics

    If y = a + bt + ct2, where y is in metre and t in second, then the unit of c is-

    m/s2

    If y = a + bt + ct2, where y is in metre and t in second, then the unit of c is-

    physicsmechanics
    m/s2
    mechanics
    physics

    In the equation open parentheses P plus fraction numerator a over denominator V to the power of 2 end exponent end fraction close parentheses left parenthesis V minus b right parenthesis = RT, the SI unit of 'a' is -

    In the equation open parentheses P plus fraction numerator a over denominator V to the power of 2 end exponent end fraction close parentheses left parenthesis V minus b right parenthesis = RT, the SI unit of 'a' is -

    physicsmechanics
    mechanics
    physics

    Given that force (F) is given F = Pt–1 + Qt. Here t is time. The unit of P is same as that of -

    Force = fraction numerator P over denominator t end fraction
    Dimension of P = dimension of (Force × time)

    Given that force (F) is given F = Pt–1 + Qt. Here t is time. The unit of P is same as that of -

    physicsmechanics
    Force = fraction numerator P over denominator t end fraction
    Dimension of P = dimension of (Force × time)
    mechanics
    physics

    The velocity of a particle is given byv = a + fraction numerator b over denominator t end fraction + ct2 The unit of b will be-

    The velocity of a particle is given byv = a + fraction numerator b over denominator t end fraction + ct2 The unit of b will be-

    physicsmechanics
    mechanics
    physics

    [M–1L3T–2] is the dimensional formula of -

    [M–1L3T–2] is the dimensional formula of -

    physicsmechanics
    mechanics
    physics

    If time T, acceleration A and force F are regarded as base units, then the dimensional formula of work is-

    If time T, acceleration A and force F are regarded as base units, then the dimensional formula of work is-

    physicsmechanics
    mechanics
    physics

    Given : X = (Gh/c3)1/2, where G, h and c are gravitational constant, Planck's constant and the velocity of light respectively. Dimensions of X are the same as those of-

    X = open parentheses fraction numerator G h over denominator C to the power of 3 end exponent end fraction close parentheses to the power of 1 divided by 2 end exponent = open square brackets fraction numerator M to the power of negative 1 end exponent L to the power of 3 end exponent T to the power of negative 2 end exponent cross times M to the power of 1 end exponent L to the power of 2 end exponent T to the power of negative 1 end exponent over denominator L to the power of 3 end exponent T to the power of negative 3 end exponent end fraction close square brackets to the power of 1 divided by 2 end exponent

    Given : X = (Gh/c3)1/2, where G, h and c are gravitational constant, Planck's constant and the velocity of light respectively. Dimensions of X are the same as those of-

    physicsmechanics
    X = open parentheses fraction numerator G h over denominator C to the power of 3 end exponent end fraction close parentheses to the power of 1 divided by 2 end exponent = open square brackets fraction numerator M to the power of negative 1 end exponent L to the power of 3 end exponent T to the power of negative 2 end exponent cross times M to the power of 1 end exponent L to the power of 2 end exponent T to the power of negative 1 end exponent over denominator L to the power of 3 end exponent T to the power of negative 3 end exponent end fraction close square brackets to the power of 1 divided by 2 end exponent
    mechanics
    physics

    The force F is given in terms of time t and displacement x by the equation F = AcosBx + CsinDt. The dimensional formula of fraction numerator D over denominator B end fraction is-

    [B] = [L–1]

    [D] = [T–1]

    The force F is given in terms of time t and displacement x by the equation F = AcosBx + CsinDt. The dimensional formula of fraction numerator D over denominator B end fraction is-

    physicsmechanics
    [B] = [L–1]

    [D] = [T–1]

    mechanics
    physics

    The velocity of a body which has fallen freely under gravity varies as gphq, where g is the acceleration due to gravity and 'h' is the height through which it has fallen. The values of p and q are-

    The velocity of a body which has fallen freely under gravity varies as gphq, where g is the acceleration due to gravity and 'h' is the height through which it has fallen. The values of p and q are-

    physicsmechanics
    mechanics
    physics

    The time of oscillation t of a small drop of liquid depends on radius r, density ρ and surface tension S. The relation between them is given by-

    The time of oscillation t of a small drop of liquid depends on radius r, density ρ and surface tension S. The relation between them is given by-

    physicsmechanics