wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

When a 'U' shaped slider of negligible mass is dipped in a soap solution and lifted, a thin film of soap is formed in the frame. It supports a weight of 2.0 x 102 N. If the length of the slider is 40cm, the surface tension of the film of soap is:

A
25 Nm1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2.5 Nm1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
2.5 x 102 Nm1
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
2.5 x 103 Nm1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 2.5 x 102 Nm1
Given:
Length of the slider =40 cm
Weight supports =2.0×102 N
The surface tension here is given as σ=F2l=2×1022×0.4=2.5×102Nm1

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Surface Tension of Water
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon