Download App

Surface Tension — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsSurface Tension1 Mark
MCQ
The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from $x=1 \mathrm{~cm}$ to $x=5 \mathrm{~cm}$ is
Image
  • ✓
    $20$ ergs
  • B
    $60$ ergs
  • C
    $70$ ergs
  • D
    $700$ ergs
✓

Answer

Correct option: A.
$20$ ergs
Work done = area between the graph and position axis
$W=10 \times 1+20 \times 1-20 \times 1+10 \times 1=20 \text { erg }$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Surface Tension→Surface Tension — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The work done in blowing a soap bubble of radius $r$ of the solution of surface tension $T$ will be
→
A motor cycle driver doubles its velocity when he is having a turn The force exerted outwardly will be
→
Whose dimensions is $M L^2 T^{-1}$
→
Three glass prisms $A, B$ and $C$ of same refractive index are placed in contact with each other as shown in figure, with no air gap between the prisms. Monochromatic ray of light $O P$ passes through the prism assembly and emerges as $Q R$. The conditions of minimum deviation is satisfied in the prisms
Image
→
If $x$ is the distance of an object from the focus of a concave mirror and $y$ is the distance of image from the focus, then which of the following graphs is correct between $x$ and $y$
→
If the momentum of a body is increased $n$ times, its kinetic energy increases
→
A achromatic combination is made with a lens of focal length $f$ and dispersive power $\omega$ with a lens having dispersive power of $2 \omega$. The focal length of second will be
→
A mass $m$ slips along the wall of a semispherical surface of radius $R$. The velocity at the bottom of the surface isImage
→
Which of the following is dimensionally correct
→
For an ideal gas, in an isothermal process
→