NEET Class neet Answered
Please solve this problem
![question image](https://images.topperlearning.com/topper/new-ate/topr_433486438315284261PhotoPictureResizer191120004938360crop2496x1009.jpeg)
Asked by Www.manashjyoti333 | 20 Nov, 2019, 00:50: AM
![](https://images.topperlearning.com/topper/tinymce/imagemanager/files/4927dfda26d5ba79254b202592c6c7fc5dd4e4724061a6.65939050st.png)
when a hollow sphere with a small hoe is immersed in water, initially a bubble of radius equal to the hole radius
is formed as shown in figure. When the bubble breaks, then water enters into the hollow sphere.
excess pressure ΔP inside the bubble is given by, ΔP = ρgh = 4T/r ......(1)
where ρ is density of water, g is acceleration due to gravity, h is height of water column above the hole of sphere,
T is surface tension and r is hole radius
hence we get, r = 4T / ( ρgh ) = ( 4×0.07) / ( 1000 × 9.8 × 40 × 10-2 ) = 7.143 × 10-5 m
diameter of hole = 2 × 7.143 × 10-5 m = 14.286 × 10-5 m = 0.143 mm
Answered by Thiyagarajan K | 20 Nov, 2019, 12:43: PM
Application Videos
Concept Videos
NEET neet - Physics
Asked by cmashudrana | 26 Jul, 2024, 10:51: AM
NEET neet - Physics
Asked by upparmanjunath70 | 19 Jul, 2024, 22:26: PM
NEET neet - Physics
Asked by zfaima704 | 19 Jul, 2024, 14:29: PM
NEET neet - Physics
Asked by shaikmuneerjaan | 18 Jul, 2024, 20:58: PM
NEET neet - Physics
Asked by nk4746870 | 15 Jul, 2024, 21:21: PM
NEET neet - Physics
Asked by dasmyton | 09 Jul, 2024, 22:46: PM
NEET neet - Physics
Asked by shobhaguduru02 | 09 Jul, 2024, 20:21: PM
NEET neet - Physics
Asked by kashinathpaikrao89446 | 09 Jul, 2024, 10:46: AM
NEET neet - Physics
Asked by dshyamala44 | 08 Jul, 2024, 21:05: PM
NEET neet - Physics
Asked by jagadishshnkr | 08 Jul, 2024, 20:50: PM