Physics

    Physics
    An object which absorbs all colours and reflects none appears:
    A black object absorbs all wavelengths of light and reflects none and that’s why it appears black. Consequently, black absorbs the most heat.
    Author: rikazzz Comment
    Physics
    Which of the following represents a relation for ”heat lost = heat gained’?
    The answer is calorimetry, calorimetry is the principle used in calorimeters according to this the net rate of heat generated is same as heat gained by the cooling mechanism. Since there is no work transfer it is relevant.
    Author: rikazzz Comment
    Kinematics
    Among the following the scalar quantity is
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    Everyday Science
    An object that revolves around a planet is called a
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    Physics
    The odometer guage indicates
    The odometer or the odograph is an instrument used to indicate the distance travelled by the vehicle
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    Physics
    When a body falls from an aeroplane, there is increase in its
    The energy possessed by a body by virtue of its motion is called kinetic energy. Potential Energy is the energy possessed by virtue of its position or configuration. When a body falls from an aeroplane, there is increase in its acceleration.
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    Current Electricity
    One kilowatt-hour is equal to
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    Turning Effect of Forces
    The sum of two or more forces is called
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    Thermal Properties of Matter
    The coefficient of volume expansion of solids is
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    Physics
    Lens is made up of which glass
    Lens is made up of flint glass.
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