Home
Class 11
PHYSICS
A metallic wire of diameter d is lying h...

A metallic wire of diameter `d` is lying horizontally on the surface of water. The maximum length of wire so that it may not sink will be

A

`sqrt((2T)/(pi d g))`

B

`sqrt((2piT)/(dg))`

C

`sqrt((2piTg)/d)`

D

`sqrt(2pi T gd)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A wire of mass 5 gm is kept horizontally on the surface of water. What ist he minimum length of the wire so that it does not break the surface film.Surface tension = 72 xx 10^(-3)N//m

A wire of mass 1g is kept horizontally on the surface of water. The length of the wire that does not break the surface film is (surface tension of water is 70dyne cm^-1 )

A dry clean steel needle of diameter d and density rho when carefully placed on the surface of water remains floating . If T is the surface tension of water , then maximum value for the diameter d of the needle for enabling it to float will be

A metal wire of density rho floats on water surface horozontally. If is NOT to sink in water, then maximum radius of wire is proportional to (where, T=surface tension of water, g=gravitational acceleration)

A straight wire of length 30 cm and mass 60 mg lies in a direction 30^(@) east of north.The earth's magnetic field at this is horizontal and has a magnitude of 0.8 G.What current must bre passed through the wire,so that it may float in air ?

A 10 cm long wire is placed horizontal on the surface of water and is gently pulled up with a force of 2xx10^(-2) N to keep the wire in equilibrium. The surface tension, in Nm^(-1) of water is

A wire 0.1m long is placed horizontally on the surface of water and is gently pulled up with a force of 1.456 xx 10^(-2) N to keep the wire in equilibrium. Calculate the surface tension of water.

A wire of cross-sectional area A breaks due to its own weight when length of the wire is l. If area of cross-section of the wire is made 3A then maximum length of the wire can be hung without breaking is

One end of a horizontal thick copper wire of length 2L and radius 2R is weded to an end of another horizontal thin copper wire of length L and radius R .When the arrangement is stretched by applying forces at two ends , the ratio of the elongation in the thin wire to that in the thick wire is

A metallic wire of diameter 0.3 mm and length 3m is stretched by hanging a weight of 2 kg . If the elongation produced is 2 mm