Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

A drop of mercury of radius 3 mm splits into 27 identical droplets. Find the increase in surface energy. Surface tension of mercury is 0.465 N/m.
Asked by Topperlearning User | 01 Aug, 2014, 04:23: PM
answered-by-expert Expert Answer

Let r be the radius of the small droplet. As the volume of mercury will remain constant on splitting the drop into droplets, therefore

Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

Answered by | 01 Aug, 2014, 06:23: PM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Physics
Applications of Bernoulli's theorem can be seen in :  a. dynamic lift of airplane b. hydraulic press c. helicopter d. none of the above
Asked by vanshraaj.ind | 13 Dec, 2020, 06:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
An ancient building has a fine of 5m radius and uniform but small thickness.The surface tension of its masonry structure is about 500Nm^-1.Treated as hemisphere,find the maximum load that dome can support.
Asked by Vidushi412 | 20 Dec, 2018, 12:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Define surface tension.  What is the cause of surface tension?  What is its measure?
Asked by Topperlearning User | 01 Aug, 2014, 01:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Why do the hairs of a shaving brush cling together when taken out of water?
Asked by Topperlearning User | 01 Aug, 2014, 01:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
If we place a cotton thread loop on a soap film gently and prick the film within the loop then what shape will the thread loop acquire?
Asked by Topperlearning User | 01 Aug, 2014, 01:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
When a sewing needle is gently placed on the surface of water, it floats. Why?
Asked by Topperlearning User | 01 Aug, 2014, 01:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Define surface energy and show that surface energy is equal to surface tension.
Asked by Topperlearning User | 01 Aug, 2014, 02:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
n identical drops (each of radius r) of liquid of surface tension T and density coalesce to form single drop.  The energy released in the processes is converted into kinetic energy.  Find the speed of drop.
Asked by Topperlearning User | 01 Aug, 2014, 03:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Derive an expression for excess of pressure inside a soap bubble.
Asked by Topperlearning User | 01 Aug, 2014, 03:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
What happens if the capillary tube is of insufficient height?
Asked by Topperlearning User | 01 Aug, 2014, 03:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×