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A square plate of 0.1 m side moves parallel to another plate with a velocity of 0.1 m s-1, both plates being immersed in viscous liquid. If the viscous force is 0.02 N and the coefficient of viscosity is 1 poise, then distance between the plates is
  • a)
    20 mm
  • b)
    10 mm
  • c)
    5 mm
  • d)
    1.5 mm
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A square plate of 0.1 m side moves parallel to another plate with a ve...
Given:
Side of the square plate (a) = 0.1 m
Velocity of the plate (v) = 0.1 m/s
Viscous force (F) = 0.02 N
Coefficient of viscosity (η) = 1 poise = 0.1 N s/m²

To find:
Distance between the plates

Formula:
Viscous force (F) = ηA(v/d)

Where,
A = area of the plate
v = velocity of the plate
d = distance between the plates

Calculation:
Given that the plate is square, the area of the plate (A) = side² = (0.1 m)² = 0.01 m²

Using the formula F = ηA(v/d), we can rearrange the equation to solve for d:
d = ηA(v/F)

Substituting the given values:
d = (0.1 N s/m²)(0.01 m²)(0.1 m/s)/(0.02 N)
d = (0.001 N s/m)(0.1 m)/(0.02 N)
d = (0.0001 N s)/(0.02 N)
d = 0.005 m = 5 mm

Therefore, the distance between the plates is 5 mm, which corresponds to option C.
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A square plate of 0.1 m side moves parallel to another plate with a velocity of 0.1 m s-1, both plates being immersed in viscous liquid. If the viscous force is 0.02 N and the coefficient of viscosity is 1 poise, then distance between the plates isa)20 mmb)10 mmc)5 mmd)1.5 mmCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A square plate of 0.1 m side moves parallel to another plate with a velocity of 0.1 m s-1, both plates being immersed in viscous liquid. If the viscous force is 0.02 N and the coefficient of viscosity is 1 poise, then distance between the plates isa)20 mmb)10 mmc)5 mmd)1.5 mmCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A square plate of 0.1 m side moves parallel to another plate with a velocity of 0.1 m s-1, both plates being immersed in viscous liquid. If the viscous force is 0.02 N and the coefficient of viscosity is 1 poise, then distance between the plates isa)20 mmb)10 mmc)5 mmd)1.5 mmCorrect answer is option 'C'. Can you explain this answer?.
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