Answer

Verified

385.2k+ views

**Hint:**Here the solution is only to find the radiating surface in the system not the total surface of the system. So we will find only the curved surface area of the cylindrical pipe with the help of given dimensions.

**Step by step solution:**

Given that,

Length of the cylinder is 28m. This length of pipe is nothing but the height of the system.

So h=28m=0.28cm

Diameter is 5cm. so radius r=2.5cm

Now the curved surface area of the cylindrical pipe that is radiating is given by,

\[CS{A_{cylinder}} = 2\pi rh\]

Putting the values,

\[ \Rightarrow 2 \times \dfrac{{22}}{7} \times \dfrac{{2.5}}{{100}} \times 28\]

On doing the calculations

\[ \Rightarrow 44 \times 4 \times \dfrac{{2.5}}{{100}}\]

\[ \Rightarrow 44 \times \dfrac{{2.5}}{{25}}\]

\[ \Rightarrow 44 \times 0.1\]

\[ \Rightarrow 4.4c{m^2}\]

This is the area of the cylindrical pipe that radiates.

**Note:**

Note that the length is given in meters and diameter is given in centimeters. So first convert the dimensions to any one measuring system either meters or in centimeters and then start solving. Also note that we are asked to find the radiating surface only!

Recently Updated Pages

How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE

Why Are Noble Gases NonReactive class 11 chemistry CBSE

Let X and Y be the sets of all positive divisors of class 11 maths CBSE

Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE

Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE

Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE

Trending doubts

Establish a relation between electric current and drift class 12 physics CBSE

Guru Purnima speech in English in 100 words class 7 english CBSE

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

Difference Between Plant Cell and Animal Cell

Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE

Write a letter to the principal requesting him to grant class 10 english CBSE

Copper is not used as potentiometer wire because class 12 physics CBSE

Give 10 examples for herbs , shrubs , climbers , creepers

Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE