GATE CSE
First time here? Checkout the FAQ!
x
+2 votes
111 views

The volume generated by revolving the area bounded by parabola y^2 = 8x and the line x = 2 about y-axis is....

A) 128π/5

B) 5/128π

C) 127/5π

D) None

EDIT: Following is the area we have to revolve. And answer is given as (A). And kindly explain the methodology to solve such volumetric qstns if you get the answer. Thanx in advance :)

 

asked in Calculus by Loyal (2.5k points)  
edited by | 111 views
is it none of these? , I am getting $16\pi$
See the EDIT.

2 Answers

+3 votes
Best answer

I think I get it correct

answered by Veteran (52.2k points)  
selected by
Volume you have calculated first is the volume of solid generated by revolving the area bounded by parabola and the line. 32pi/5 must be the answer....correct me if anyone have the other solution
0 votes
I guess it is D).

$\int_{0}^{4}\Pi \left ( 2-y^{2}/8 \right )^{2}dy = 128\Pi /15$
answered by Junior (943 points)  

Related questions

0 votes
2 answers
1
0 votes
1 answer
2
asked in Calculus by Akriti sood Veteran (10.3k points)   | 88 views
+1 vote
2 answers
3
Top Users Jan 2017
  1. Debashish Deka

    8968 Points

  2. sudsho

    5326 Points

  3. Habibkhan

    4798 Points

  4. Bikram

    4532 Points

  5. Vijay Thakur

    4486 Points

  6. saurabh rai

    4222 Points

  7. Arjun

    4196 Points

  8. santhoshdevulapally

    3808 Points

  9. Sushant Gokhale

    3596 Points

  10. Kapil

    3486 Points

Monthly Topper: Rs. 500 gift card

19,212 questions
24,104 answers
53,150 comments
20,319 users