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An incompressible liquid is flowing through a uniform cross-sectional tube with a velocity 12 cm/ s. If the thickness of liquid layer is 0.8 cm, what is the velocity gradient of that flow of liquid?
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State and explain Newton's law of viscosity.
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A force of 0.01 N is required to move a flat glass plate of area of 10 cm2 with a uniform velocity of 1 cm/ s over the surface of a liquid 2 mm thick. If the coefficient of viscosity of the liquid is 20 poise, the velocity gradient in the liquid layer is ______.
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The dimensions of coefficient of viscosity are ______.
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A water pipe with diameter of 5.0 cm is connected to another pipe of diameter 2.5 cm. How would the speeds of the water flow compare?
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State Stoke’s law and give two factors affecting angle of contact.
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Derive an expression for the terminal velocity of the sphere falling under gravity through a viscous medium.
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State Stokes' law and an expression for the magnitude of the viscous force.
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Why does the speed of a liquid increase and its pressure decrease when a liquid passes through a constriction in a horizontal pipe?
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Bernoulli's equation for an ideal fluid in streamline flow may be written as
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Bernoulli's theorem is based on the conservation of
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What is the basis of Bernoulli’s principle?
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Explain the working of an atomizer.
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Write whether the following statement is ‘True’ or ‘False’:
One of the major obstacles to getting help from a mental health professional is the stigma attached to mental illness.
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Psychology is simply a pseudoscience.
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Bringing objects, persons or situations from the field of awareness into the center of awareness is called attention.
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Answer in one sentence.
Which hormone is secreted by thyroid gland?
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Answer the following question in 25 to 30 words:
Write in your own words how the mass media affects personality.
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Answer the following question in 25 to 30 words:
Explain in your own words the importance of 'encouraging to get professional help'.
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Match the words from group 'A' and 'B' appropriately :
| Group A | Group B |
| (a) Emergence of Functionalism | (1) Model of emotions |
| (b) Behavourial analysis | (2) William James |
| (c) Plutchik | (3) Interview |
| (d) First aid in mental health | (4) Overcome hurdles |
| (e) Resilience | (5) Wilhelm Wundt |
| (6) ALGEE action plan |
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