351: 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
352: Consider the following techniques/phenomena:
1. Budding and grafting in fruit plants
2. Cytoplasmic male sterility
3. Gene silencing
Which of the above is/are used to create transgenic crops?
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) None
353: Pearls are formed inside:
(a) Squids
(b) Snails
(c) Oysters
(d) Mollusks
354: Which one of the following is not an instrument of selective credit control in India ?
(a) Regulation of consumer credit
(b) Rationing of credit
(c) Margin requirements
(d) Variable cost reserve ratios
355: Which one of the Chola kings conquered Ceylon ?
(a) Aditya I
(b) Rajaraja I
(c) Rajendra
(d) Vijayalaya