Physics and Measurement-Dimensional Analysis and Its Applications (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 3 of 3

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 268 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 1

» Physics and Measurement » Dimensional Analysis and Its Applications

Appeared in Year: 2012

MCQ▾

Question

A liquid drop placed on a horizontal plane has a near spherical shape (slightly flattened due to gravity). Let R be the radius of its largest horizontal section. A small disturbance causes the drop to vibrate with frequency ν about its equilibrium shape. By dimensional analysis the ratio νσρR3 can be (here σ is surface tension, ρ is density, g is acceleration due to gravity, and k is an arbitrary dimensionless constant)

Choices

Choice (4) Response

a.

K=ρgσ

b.

K=ρR3gσ

c.

K=ρgR2σ

d.

K=ρR2gσ

Question number: 2

» Physics and Measurement » Dimensional Analysis and Its Applications

Appeared in Year: 2012

MCQ▾

Question

The potential energy of a point particle is given by the expression V(x)=αx+βsin(xγ) . A dimensionless combination of the constants α, β and γ is –

Choices

Choice (4) Response

a.

αβγ

b.

α2βγ

c.

γαβ

d.

αγβ

Question number: 3

» Physics and Measurement » Dimensional Analysis and Its Applications

Appeared in Year: 2016

MCQ▾

Question

Physical processes are sometimes described visually by lines. Only the following can cross:

Choices

Choice (4) Response

a.

Rays in geometrical optics

b.

Lines of force in electrostatics

c.

Streamlines in fluid flow

d.

Lines of force in magnetism

Sign In