Questions

In the bond formation of barium with oxygen, the valency electrons from the barium transferred to the oxygen and forms an ionic bond.

At the center of the sun, nuclear fusion converts hydrogen into helium, energy, and neutrinos. Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons).

India’s first indigenously built Floating Dock (FDN-2) for the Indian Navy has launched at the L&T Shipbuilding Yard at Kattupalli near Chennai, Tamil Nadu. The Floating Dock is 185 metres long and 40 metres wide and will enable docking of all kinds of vessels, including Naval ships and submarines (excepting aircraft carriers and tankers) of up to 8,000 tonnes displacement, with draughts of up to seven metres, during both day and night. FDN-2 was designed and built by Larsen & Toubro Ltd. (L&T) at a cost of Rs 468 crore.

Common Loon

High frequency sound attacks the tympanic memberane and makes it defective. 120 decibles is too high a pitch to be heard and therefore it impairs the hearing ability.