Physics-
General
Easy

Question

A mass M is suspended by two springs of force constants K­1 and K2 respectively as shown in the diagram. The total elongation (stretch) of the two springs is

  1. fraction numerator M g over denominator K subscript 1 end subscript plus K subscript 2 end subscript end fraction    
  2. fraction numerator M g left parenthesis K subscript 1 end subscript plus K subscript 2 end subscript right parenthesis over denominator K subscript 1 end subscript K subscript 2 end subscript end fraction    
  3. fraction numerator M g K subscript 1 end subscript K subscript 2 end subscript over denominator K subscript 1 end subscript plus K subscript 2 end subscript end fraction    
  4. fraction numerator K subscript 1 end subscript plus K subscript 2 end subscript over denominator K subscript 1 end subscript K subscript 2 end subscript M g end fraction    

The correct answer is: fraction numerator M g left parenthesis K subscript 1 end subscript plus K subscript 2 end subscript right parenthesis over denominator K subscript 1 end subscript K subscript 2 end subscript end fraction


    For series combination k subscript e q end subscript equals fraction numerator k subscript 1 end subscript k subscript 2 end subscript over denominator k subscript 1 end subscript plus k subscript 2 end subscript end fraction
    F equals k subscript e q end subscript x rightwards double arrow m g equals open parentheses fraction numerator k subscript 1 end subscript k subscript 2 end subscript over denominator k subscript 1 end subscript plus k subscript 2 end subscript end fraction close parentheses x rightwards double arrow x equals fraction numerator m g left parenthesis k subscript 1 end subscript plus k subscript 2 end subscript right parenthesis over denominator k subscript 1 end subscript k subscript 2 end subscript end fraction

    Related Questions to study

    General
    Physics-

    The effective spring constant of two spring system as shown in figure will be

    The effective spring constant of two spring system as shown in figure will be

    Physics-General
    General
    Physics-

    What will be the force constant of the spring system shown in the figure

    What will be the force constant of the spring system shown in the figure

    Physics-General
    General
    Physics-

    Five identical springs are used in the following three configurations. The time periods of vertical oscillations in configurations (i), (ii) and (iii) are in the ratio

    Five identical springs are used in the following three configurations. The time periods of vertical oscillations in configurations (i), (ii) and (iii) are in the ratio

    Physics-General
    parallel
    General
    Physics-

    In the figure, S subscript 1 end subscript and S subscript 2 end subscript are identical springs. The oscillation frequency of the mass m is f. If one spring is removed, the frequency will become

    In the figure, S subscript 1 end subscript and S subscript 2 end subscript are identical springs. The oscillation frequency of the mass m is f. If one spring is removed, the frequency will become

    Physics-General
    General
    Physics-

    Two identical spring of constant K are connected in series and parallel as shown in figure. A mass m is suspended from them. The ratio of their frequencies of vertical oscillations will be

    Two identical spring of constant K are connected in series and parallel as shown in figure. A mass m is suspended from them. The ratio of their frequencies of vertical oscillations will be

    Physics-General
    General
    Physics-

    In arrangement given in figure, if the block of mass m is displaced, the frequency is given by

    In arrangement given in figure, if the block of mass m is displaced, the frequency is given by

    Physics-General
    parallel
    General
    Physics-

    A mass m is suspended by means of two coiled spring which have the same length in unstretched condition as in figure. Their force constant are k1 and k2 respectively. When set into vertical vibrations, the period will be

    A mass m is suspended by means of two coiled spring which have the same length in unstretched condition as in figure. Their force constant are k1 and k2 respectively. When set into vertical vibrations, the period will be

    Physics-General
    General
    Physics-

    What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of 10cm (g = 9.8 m/s2)

    What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of 10cm (g = 9.8 m/s2)

    Physics-General
    General
    Physics-

    A pendulum of length 2m lift at P. When it reaches Q, it losses 10% of its total energy due to air resistance. The velocity at Q is

    A pendulum of length 2m lift at P. When it reaches Q, it losses 10% of its total energy due to air resistance. The velocity at Q is

    Physics-General
    parallel
    General
    Physics-

    A simple pendulum with a bob of mass ‘m’ oscillates from A to C and back to A such that PB is H. If the acceleration due to gravity is ‘g’, then the velocity of the bob as it passes through B is

    A simple pendulum with a bob of mass ‘m’ oscillates from A to C and back to A such that PB is H. If the acceleration due to gravity is ‘g’, then the velocity of the bob as it passes through B is

    Physics-General
    General
    Physics-

    A man measures the period of a simple pendulum inside a stationary lift and finds it to be T sec. If the lift accelerates upwards with an acceleration g divided by 4, then the period of the pendulum will be

    A man measures the period of a simple pendulum inside a stationary lift and finds it to be T sec. If the lift accelerates upwards with an acceleration g divided by 4, then the period of the pendulum will be

    Physics-General
    General
    Physics-

    The period of oscillation of a simple pendulum of constant length at earth surface is T. Its period inside a mine is

    The period of oscillation of a simple pendulum of constant length at earth surface is T. Its period inside a mine is

    Physics-General
    parallel
    General
    Physics-

    Which of the following is the nm = T graph for a perfectly black body (nm =maximum frequency of radiation)

    Which of the following is the nm = T graph for a perfectly black body (nm =maximum frequency of radiation)

    Physics-General
    General
    Physics-

    In the figure, the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature of the black body is

    In the figure, the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature of the black body is

    Physics-General
    General
    Physics-

    Radius of a conductor increases uniformly from left end to right end as shown in fig.

    Material of the conductor is isotropic and its curved surface is thermally isolated from surrounding. Its ends are maintained at temperatures T1 and T2 (T1 > T2): If, in steady state, heat flow rate is equal to H, then which of the following graphs is correct

    Radius of a conductor increases uniformly from left end to right end as shown in fig.

    Material of the conductor is isotropic and its curved surface is thermally isolated from surrounding. Its ends are maintained at temperatures T1 and T2 (T1 > T2): If, in steady state, heat flow rate is equal to H, then which of the following graphs is correct

    Physics-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.