2916: Graphene is frequently in news recently. What is its importance?
1. It is a two-dimensional material and has good electrical conductivity.
2. It is one of the thinnest but strongest materials tested so far.
3. It is entirely made of silicon and has high optical transparency.
4. It can be used as 'conducting electrodes' required for touch screens, LCDs and organic LEDs.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 2 and 4 only
(d) 1, 2, 3 and 4
2917: The first among the following to establish trade links with India were:
(a) Dutch
(b) French
(c) Portuguese
(d) English
2918: The first Asian Games were held at:
(a) New Delhi in 1950
(b) Bangkok in 1952
(c) Singapore in 1952
(d) Kuala Lumpur in 1952
2919: European Stability Mechanism, sometimes seen in the news, is an
(a) agency created by EU to deal with the impact of millions of refugees arriving from Middle East
(b) agency of EU that provides financial assistance to eurozone countries
(c) agency of EU to deal with all the bilateral and multilateral agreements on trade
(d) agency of EU to deal with the conflicts arising among the member countries
2920: Black hole is:
(a) A magnetic dark cavity
(b) Name of a star
(c) A hole in the moon
(d) A dying star