Answer

Verified

18.3k+ views

**Hint**To answer this question we should use the Archimedes’ Principle. The principal says that the greater will be the volume of the water displaced, the upthrust will be more. On the other hand, if the amount of water displayed is less then the upthrust will also be less on the object.

**Complete step by step answer:**

We know that the iron ship is constructed in such a way that it is mostly hollow from within.

Hence, the average density of the ship is less than that of water (i.e. less than$\dfrac{{1g}}{{c{m^3}}}$) whereas iron needle bring compact and its density is $\dfrac{{7.6g}}{{c{m^3}}}$ which is more than $\dfrac{{1g}}{{c{m^3}}}$ (density of water).

**Hence, the needle sinks in water.**

**Note**The Archimedes’ principle gives us an idea that when a body which is in a fluid is at rest then there will be a force acting on the body which will push the body upward. This force is known as the buoyant force and this force will be equal to the weight of the fluid that is displayed by the body. On the other hand, if the body is completely submerged in the fluid, then in that case the volume of the fluid that is displayed is equal to the volume of the body that is submerged.

Recently Updated Pages

If a wire of resistance R is stretched to double of class 12 physics JEE_Main

Let f be a twice differentiable such that fleft x rightfleft class 11 maths JEE_Main

Find the points of intersection of the tangents at class 11 maths JEE_Main

For the two circles x2+y216 and x2+y22y0 there isare class 11 maths JEE_Main

The path difference between two waves for constructive class 11 physics JEE_MAIN

What is the difference between solvation and hydra class 11 chemistry JEE_Main

Other Pages

The peak voltage in a 220 V 50 Hz AC source is A 220 class 12 physics JEE_Main

Derive an expression for maximum speed of a car on class 11 physics JEE_Main

Why does capacitor block DC and allow AC class 12 physics JEE_Main

Electric field due to uniformly charged sphere class 12 physics JEE_Main

Formal charge on nitrogen and oxygen in NO3 ion are class 11 chemistry JEE_Main

Assertion Work and heat are two equivalent from of class 11 chemistry JEE_Main