Question
A right circular cylinder having total surface area of
17710 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 = 17710 = 2πr(h + r) ∴ 17710 = 2πr(1.3r + r) = 2πr(2.3r) = 4.6πr2 ∴ 17710 = (9.2/2) × (22/7) × r2 = 17710 x 7 x 2/22 x 9.2 ∴ r2 = 1225 ∴ r = 35 and h = 45.5 Amount of water displaced = Volume of the right circular cylinder = πr2h = (22/7) × (35)2 × (45.5) = 175175 cm³
Phase - I of the Ahmedabad Metro project that was recently flagged off by PM Narendra Modi comprises about _____km of the East - West corridor from Appa...
What was the value of India's electronics sector in FY23, and what percentage of the total electronics production was constituted by mobile phones?
What is the new category created by the Reserve Bank of India (RBI) for commercial banks as part of the revised investment norms?
NITI Aayog released a report ‘India’s Booming Gig and Platform Economy’. According to it, the Indian gig workforce is expected to expand to _____ ...
Google has paid special tributes to one of India's first female scientists , Anna Mani, with a doodle on her ____ birth anniversary.
The Food and Agriculture Organization's (FAO) All Rice Price Index rose 2.8% in July from a month ago to its highest level in nearly 12 years as prices ...
When the President of India keeps a bill (except money bill and constitutional amendment bill) pending for an indefinite period, it is called ________.
The Aviation Park inaugurated recently is located in:
Which government enterprise ranked top amongst Consulting Services Firm in Water and other Infrastructure Sectors, with highest sanctioned financed amount?
The Pradhan Mantri Jan Dhan Yojana (PMJDY), launched in 2014, reached the significant milestone of 500 million accounts. Among these, ______ percent of ...