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Physics Test 95

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Physics Test 95
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Weekly Quiz Competition
  • Question 1
    4 / -1

    Find the wrong statement :-

    Solution

    1 torr = Pressure due to 1 mm of Hg column.

     

  • Question 2
    4 / -1

    Two separate air bubbles (radii 0.004 m and 0.002 m) formed of the same liquid (surface tension 0.07 N/m) come together to form a double. Radius of curvature of common surface will be :-

    Solution

     

  • Question 3
    4 / -1

    Viscosity of liquids :-

  • Question 4
    4 / -1

    Area under stress – strain graph gives :-

  • Question 5
    4 / -1

    Glass is :-

    Solution

     

  • Question 6
    4 / -1

    A container filled with liquid is placed on a smooth surface as shown. For what acceleration of container pressure at point C becomes equal to pressure at A :-

    Solution

    Same pressure points, always lies on same plane.

     

  • Question 7
    4 / -1

    In a syphon tube – (Find wrong statement)

    Solution

    From Bernoulli's theorem

    P1 = P2 = P6 = P0

    P3 < P0

    so         P3 = P5 < P0

    speed of liquid flow inside tube will be constant

     

  • Question 8
    4 / -1

    An air bubble of radius 1 mm is formed inside water at a depth 10 m below the free surface. Pressure inside the bubble is :- 

    (atmospheric pressure = 1 × 105 Pa, g = 10 m/s2, Surface tension = 7 × 10–2 N/m2)

    Solution

     

  • Question 9
    4 / -1

    A capillary tube of radius r is lowered into a liquid of surface tension T and density ρ. (Contact angle 00). What is potential energy acquired by the liquid in the capillary ?

    Solution

     

  • Question 10
    4 / -1

    A spherical body  of diameter 'D' is falling in an ideal fluid under gravity, it's terminal speed will be proportional to:-

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