2866: In an open economy, the national income (Y) of the economy is :
If C, I, G, X, M stand for Consumption, Investment, Govt. Expenditure, total exports and total imports respectively.
(a) Y = C + I + G + X
(b) Y = C + I + G - X + M
(c) Y = C + I + G + (X - M)
(d) Y = C + I - G + X - M
2867: Total internal reflection can take place when light travels from
(a) diamond to glass
(b) water to glass
(c) air to water
(d) air to glass
2868: Consider the following pairs:
Traditions - Communities
1. Chaliha Sahib Festival - Sindhis
2. Nanda Raj Jaat Yatra - Gonds
3. Wari-Warkari - Santhals
Which of the pairs given above is/are correctly matched?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) None of the above
2869: Which one of the following dynasties was ruling over North India at the time of Alexander's invasion ?
(a) Nanda
(b) Maurya
(c) Sunga
(d) Kanva
2870: Sun's halo is produced by the refraction of light in
(a) Water vapour, in Stratus clouds
(b) Ice crystals in Cirro-Cumulus clouds
(c) Ice crystals in Cirrus clouds
(d) Dust particles in Stratus clouds