Questions

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And,  height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.

An atom that loses or gains electrons is called as ion. Gaining of electron is negative charge and is called as Anion and lossing of eectron is called Cation.

The compound methane is a simple hydrocarbon contains one carbon bonded to four hydrogens. Ethane is a simple hydrocarbon which contains two carbon atoms and four hydrogen atoms. Similarly, propane with three carbons.

The caves of Ajanta are famous for paintings.

Waiting state

The Reserve Bank of India has constituted a 10-member ‘High Level Task Force on Public Credit Registry (PCR) for India’, which will, among other things, suggest a roadmap for developing a transparent, comprehensive and near-real-time PCR for India.Headed by YM Deosthalee, ex-CMD, L&T Finance Holdings, the task force includes Sekar Karnam, DMD & Chief Credit Officer, SBI; Vishaka Mulye, ED, ICICI Bank; Rashesh Shah, Chairman and CEO, Edelweiss Group; and Sriram Kalyanaraman, MD and CEO, National Housing Bank.

Delhi High Court has ordered a ban over online sale of medicines across India.