science & tech MCQ section 5 MCQ Questions & Answers Detailed Explanation

Answer: (b)

This scorching achievement happened inside the Relativistic Heavy Ion Collider (RHIC), which is a 2.4-mile (3.9 kilometres) underground track where particles smash into one another under conditions that existed about a millionth of a second after the Big Bang.

The new feat, at Brookhaven National Laboratory in Upton, N.Y., occurred when gold nuclei (the positively charged part of the atom made of protons and neutrons) were sent speeding around RHIC at near light-speed until they crashed into each other.

When the ions collide, the enormous energy released is so, intense it melts the neutrons and protons inside the gold nuclei into their constituent parts, namely quarks and gluons.

RHIC physicists have measured the temperature of this quark-gluon plasma, finding it reaches around 7.2 trillion degrees Fahrenheit (4 trillion degrees Celsius).

Answer: (b)

44th Navy Day was observed on 4th December 2015. Every year Indian Navy celebrates Navy Day on December 4 to commemorate the success of the Operation Trident of 1971 India-Pakistan War.

Answer: (c)

Contactless cards launched by ICICI Bank can be used to make electronic payments by waving the cards near the merchant terminal instead of dipping or swiping. These cards are based on Near Field Communication technology.

Answer: (c)

Answer: (d)

The satellite was carried by a Long March-4B rocket, marking the 202th mission for the rocket family.

Answer: (b)

EDUSAT or GSAT-3 is a communications satellite which was launched on 20 September 2004 by the Indian Space Research Organisation. EDUSAT is the first Indian satellite built exclusively to serve the educational sector.