1716: 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
1717: Consider the following statements :
1. Length of a terrestrial mile is lesser than that of a nautical mile.
2. Harmattan is a dusty land-wind of the East African Coast.
3. Greece and Albania from a part of the Iberian Peninsula.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 3 only
(c) 2 and 3, only
(d) 1, 2 and 3
1718: Among the reasons for disguised unemployment in rural areas is
(a) Choice of a heavy industry model for economic development
(b) Low levels of technological development in the country
(c) Heavy pressure of population along with half-hearted implementation of agrarian reforms
(d) High illiteracy rates
1719: With reference to 'Indian Ocean Rim Association for Regional Cooperation (IOR-ARC)', consider the following statements:
1. It was established very recently in response to incidents of piracy and accidents of oil spills.
2. It is an alliance meant for maritime security only.
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
1720: In India, Judicial Review implies
(a) the power of the Judiciary to pronounce upon the constitutionality of laws and executive orders.
(b) the power of the Judiciary to question the wisdom of the laws enacted by the Legislatures.
(c) the power of the Judiciary to review all the legislative enactments before they are assented to by the President.
(d) the power of the Judiciary to review its own judgements given earlier in similar or different cases.