28-04-21 Daily-Gujarat-GPSC Current Affairs

High price and stricter restrictions imposed territorially to contain the spread ofCovidinfections have hurtgold demand. The import of gold in April fell by 50.7%, settling at 3.54 metric tonnes (MT) against 7.19MT in March, according to the data issued by the Ahmedabad Air Cargo Complex.

With demand taking a hit on retail counters,jewellershave reduced purchases. Moreover, the last fortnight of April saw a partial lockdown or self-imposed shutdowns which also affected retail demand.

Both chaff & flares are defensive countermeasures deployed by using navy aircraft. The cause is to confuse radar-guided or infrared-guided anti-plane missiles fired so that they may want to be diverted.

The Chaff is composed of many small aluminium or zinc lined fibres saved on-board the plane in tubes. In case the plane feels threatened by means of any radar monitoring missiles, chaff is ejected into the turbulent wake of air at the back of the plane.

Flares on being fired grant an alternate strong IR (Infrared) source to heat-seeking anti-air missiles. Thus they are lured away from the aircraft.