Question
A right circular cylinder having total surface area of
2833.6 cm2 is immersed in a vessel completely filled with water. If the height of the cylinder is 30% more than its radius, what is the amount of water displaced (in cm3)?Solution
Let the radius and height of the cylinder be r and h cm respectively. ∴ h = 1.30r Total surface area of the cylinder = 2833.6 = 2πr(h + r) ∴ 2833.6 = 2πr(1.3r + r) = 2πr(2.3r) = 4.6πr2 ∴ 2833.6 = (9.2/2) × (22/7) × r2 = 2833.6 x 7 x 2/22 x 9.2 ∴ r2 = 196 ∴ r = 14 and h = 18.2 Amount of water displaced = Volume of the right circular cylinder = πr2h = (22/7) × (14)2 × (18.2) = 11211.2 cm³
What was the Real Name of Singer Kishore Kumar?
Which country is also known as the land of pagodas?
Who is the author of the book ‘Breaking Barriers’?
‘Rand’ is the currency of which of the following countries?
Euro is not the currency of which of the following country?
Which of the following is correctly Matched?
I) Drafting Committee – Bhimrao AmbedkarÂ
II) Union Constitution Committee – Jawaharlal ...
In which of the following landmark case, a five-judge Supreme Court bench had declared triple talaq or talaq-e-biddat unconstitutional?
What type of workers primarily benefits from the E-Shram Portal?
Pushyabhuti, who ruled from Thaneswar, was the founder of---------------dynasty.
Acclaimed Indian architect Balkrishna Doshi has won the Royal Gold Medal 2022, one of the world's highest honours for architecture. Which country gives ...
Relevant for Exams:
