Science MCQ Questions in Hindi

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    Science mcq Questions in Hindi. We covered all the Science mcq Questions in Hindi in this post for free so that you can practice well for the exam.

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    The separation of cream from milk by churning happens due to

    (a) gravitational force

    (b) cohesive force

    (c) centrifugal force

    (d) None of these

    Option c - centrifugal force

    Which of the following statements are correct? I. A cream separator machine uses centrifugal force. II. When a horse suddenly moves, the rider tends to fall back due to inertia of rest. III. Bodies in free fall have equal momentum.

    (a) I, II, and III

    (b) I and II

    (c) II and III

    (d) Only I

    Option b - I and II

    The acceleration of a car moving in uniform circular motion is

    (a) zero

    (b) a constant non-zero value

    (c) non-zero but not constant

    (d) None of these

    Option b - a constant non-zero value

    When a stone tied to a string moving in a circular path suddenly breaks free, it

    (a) flies off tangentially

    (b) moves radially outward

    (c) moves radially inward

    (d) None of these

    Option a - flies off tangentially

    A brass ball tied to a wire is rotated in a horizontal circle. Which statements are correct? I. The ball moves with constant velocity. II. The ball moves with constant speed. III. The ball moves with constant acceleration. IV. The magnitude of acceleration remains constant.

    (a) Only I

    (b) I and III

    (c) I, II, and IV

    (d) II and IV

    Option d - II and IV

    The working principle of a washing machine is based on

    (a) centrifugation

    (b) dialysis

    (c) reverse osmosis

    (d) diffusion

    Option a - centrifugation

    The ladder is an example of

    (a) class I lever

    (b) class II lever

    (c) class III lever

    (d) inclined plane

    Option c - class III lever

    A ball balanced on top of a vertical rod represents

    (a) stable equilibrium

    (b) unstable equilibrium

    (c) neutral equilibrium

    (d) perfect equilibrium

    Option b - unstable equilibrium

    The motion of a body in a circular path is an example of

    (a) uniform velocity and variable acceleration

    (b) uniform speed and uniform velocity

    (c) uniform speed and variable velocity

    (d) uniform speed and variable acceleration

    Option c - uniform speed and variable velocity

    The lever operates on the principle of

    (a) torque

    (b) moment of inertia

    (c) Newton’s first law of motion

    (d) Newton’s third law of motion

    Option a - torque

    The mechanical advantage of a lever is defined as

    (a) the ratio of load to effort

    (b) the ratio of load to fulcrum

    (c) the product of load and effort

    (d) None of these

    Option a - the ratio of load to effort

    A wheelbarrow is an example of

    (a) class III lever

    (b) pulley system

    (c) class I lever

    (d) class II lever

    Option d - class II lever

    We covered all the science mcq Questions in hindi above in this post for free so that you can practice well for the exam.

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