UPSC preliminary MCQ'S Part 15

India’s first augmented reality (AR) education and training institute will be set in which of the following states?

a) Tamil Nadu

b) Assam

c) West Bengal

d) Uttar Pradesh

Correct Answer: D

Explanation

India’s first augmented reality (AR) education and training institute will be set in Varanasi. The

institution will be established by the central government in partnership with Eon Reality, an

augmented reality company based in the US.

What is Augmented Reality?

Augmented reality is a computer technology that functions on computer vision-based

recognition algorithms to augment sound, video, graphics and other sensor based inputs on real

world objects, using your device’s camera.

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It layers digital enhancements to enrich an existing real life setting by appealing to the senses.

Augmented 3D information helps workers on assembly lines, or during maintenance work and

repair to carry out required tasks.

Consider the following statements regarding the'Optical Fibre':

1. It is made up of semiconducting materials.

2. It works on the principle of Total Internal Reflection.

Which of the statements given above is/are correct?

a) Neither 1 nor 2

b) 1 only

c) 2 only

d) Both 1 and 2

Correct Answer: D

Explanation

*Optical fibre is made up of semiconducting materials and usually has a cylindrical structure. In

inner core there is material of higher refractive index than in outer core resulting in Total

Internal Reflection (TIR).

*Thus signal keeps moving along the axis and never passes out from curved surface while there

is almost no loss of energy during transmission.

Consider the following statements regarding the 'GRAPES-3' experiment, recently seen in the news:

1. It is a telescope related experiment.

2. It is a cosmic ray experiment.

3. It is located in Tamil Nadu.

Which of the statements given above is/are correct?

a) 1 and 3 only

b) 2 and 3 only

c) 1 and 2 only

d) 1, 2 and 3

Correct Answer: D

Your Answer: Unanswered

Explanation

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The GRAPES-3 experiment (or Gamma Ray Astronomy PeV EnergieS phase-3) located at Ooty in

India started as a collaboration of the Indian Tata Institute of Fundamental Research and the

Japanese Osaka City University, and now also includes the Japanese Nagoya Women's

University.

The GRAPES-3 experiment is being upgraded to get precise information about the propagation

of solar storms.

GRAPES-3 (Gamma Ray Astronomy PeV Energies Phase-3) is a muon telescope observation unit,

located in Oat (Nilgiri ,Tamilnadu).