CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A soap bubble (surface tension T) is charged to a charge density σ. If the pressure inside the bubble is equal to outside pressure in equilibrium, the radius of the bubble is given by


A

σ28ϵ0T

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

8ϵ0Tσ2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

σ8ϵ0T

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

8ϵ0Tσ

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

8ϵ0Tσ2


For a soap bubble to be in equilibrium there has to be a pressure difference of 4Tr, so

4Tr×Area=σ22ϵ0×Area


flag
Suggest Corrections
thumbs-up
6
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