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Physics · Mechanical Properties of Matter

JEE Main 2025 — 28 January, Morning Shift — Question 50

In the experiment for measurement of viscosity ' η ' of given liquid with a ball having radius R , consider following statements.

A. Graph between terminal velocity V and R will be a parabola

B. The terminal velocities of different diameter balls are constant for a given liquid.

C. Measurement of terminal velocity is dependent on the temperature.

D. This experiment can be utilized to assess the density of a given liquid.

E. If balls are dropped with some initial speed, the value of η will change.

Choose the correct answer from the options given below:

  1. Option A:

    B, D and E only

  2. Option B:

    A, C and D only

    Correct
  3. Option C:

    C, D and E only

  4. Option D:

    A, B and E only

Answer: B

Step-by-step solution

VT=29R2 gη( d−ρ)\quad \mathrm{V}_{\mathrm{T}}=\frac{2}{9} \mathrm{R}^{2} \frac{\mathrm{~g}}{\eta}(\mathrm{~d}-\rho)

Answer key and solution verified before publishing.

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Exam
JEE Main 2025
Paper
28 January, Morning Shift
Subject
Physics
Chapter
Mechanical Properties of Matter
Topic
Viscosity
In the experiment for measurement of viscosity ' η ' of given liquid… | JEE Main 2025 PYQ with Solution · DhiX AI