3176: With reference to 'Li-Fi', recently in the news, which of the following statements is/are correct?

1. It uses light as the medium for high-speed data transmission.
2. It is a wireless technology and is several times faster than 'WiFi'.

Select the correct answer using the code given below.

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3177: Which of the following pairs are correctly matched ?

I. Increase in foreign exchange reserves : Monetary expansion

II. Low import growth rate in India : Recession in Indian Industry

III. Euro-issues : Shares held by Indian companies in European countries

IV. Portfolio investment : Foreign institutional investors

Select the correct answer by using the following codes :

Codes :

(a) I, II and IV

(b) III and IV

(c) I, II and III

(d) I, II, III and IV
3178: Water which contains soluble salts of calcium and magnesium is known as

(a) Heavy water

(b) Soft water

(c) Hard water

(d) Mineral water
3179: The shaded area in the above map shows the empire of

(a) Ala-ud-din Khilji

(b) Mohammad Tughlaq

(c) Shah Jahan

(d) Aurangzeb
3180: Why is the offering of "teaser loans" by commercial banks a cause Of economic concern ?

1. The teaser loans are considered to be an aspect of sub-prime lending and banks may be exposed to the risk of defaulters in future.

2. In India, the teaser loans are mostly given to inexperienced entrepreneurs to set up manufacturing or export units.

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