Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
teach
pricing
sign-in
Download our FREE mobile app with 1000+ tests for CBSE, JEE MAIN, NEET
X
Search
Topics
Want to ask us a question?
Click here
Browse Questions
Student Questions
Ad
Home
>>
CBSE XII
>>
Math
>>
Model Papers
0
votes
A window is in the form of rectangle above which there is a semi circle. If the perimeter of window is p units, show that the window will allow maximum light, when radius of the semicircle is \( \large\frac{p}{\pi + 4} \) units.
cbse
class12
modelpaper
2012
sec-c
q24
math
Share
asked
Jan 24, 2013
by
thanvigandhi_1
1
flag
edited
Jul 23, 2013
by
sreemathi.v
Please
log in
or
register
to add a comment.
Can you answer this question?
Do not ask me again to answer questions
Please
log in
or
register
to answer this question.
Related questions
0
votes
0
answers
A window is in the form of a rectangle above which there is a semicircle. If the perimeter of the window is P cm. Show that the window will allow the maximum possible light only when the radius of the semi circle is $\large\frac{p}{\pi+4}cm$
asked
Jan 29, 2013
by
meena.p
cbse
class12
additionalproblem
kvquestionbank2012
ch6
q44
p19
math
0
votes
0
answers
A window is in the form of a rectangle surmounted by a semi-circular opening. The total perimeter of the window is 10 metres. Find the dimensions of the rectangle so as to admit maximum light through the whole opening.
asked
Feb 5, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q24
math
0
votes
1
answer
A window has the shape of a rectangle surmounted by an equilateral triangle. If the perimeter of the window is 12 m, find the dimensions of the rectangle that will produce the largest area of the window.
asked
Feb 5, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q24
difficult
math
0
votes
2
answers
Show that volume of the greatest cylinder which can inscribed in a cone of height h and semi-vertical angle $ 30^{\circ} \: is \: \large\frac{4}{81} $$\: \pi h^3.$
asked
Jan 31, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q24
math
0
votes
1
answer
Show that the rectangle of maximum area that can be inscribed in a circle is a square.
asked
Feb 11, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q24
medium
math
0
votes
0
answers
Show that the volume of the greatest cylinder that can be inscribed in a cone of height 'h' and semi-vertical angle \( \alpha \) is \( \large\frac{4}{27}\pi h^3\tan^2 \alpha \).
asked
Feb 4, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q24
math
0
votes
0
answers
Show that semi vertical angle of right circular cone of given surface area and maximum volume is $ \sin^{-1} \bigg( \large\frac{1}{3} \bigg). $
asked
Feb 2, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q24
math
Ask Question
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...