11: For reproducing sound, a CD (Compact Disc) audio player uses a
(a) quartz crystal
(b) titanium needle
(c) laser beam
(d) barium titanate ceramic
12: Assertion (A): Balance of Payments represents a better picture of a country's economic transactions with the rest of the world than the Balance of Trade.
Reason (R) : Balance of Payments takes into account the exchange of both visible and invisible items whereas Balance of Trade does not.
(a) Both A and R are individually true R is the correct explanation of A.
(b) Both A and R are individually true R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
13: Assertion (A) :
Formic acid is a stronger acid than acetic acid.
Reason (R):
Formic acid is an organic acid.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is NOT a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
14: Mediterranean Sea is a border of which of the following countries?
1. Jordan
2. Iraq
3. Lebanon
4. Syria
Select the correct answer using the code given below:
a. 1, 2 and 3 only
b. 2 and 3 only
c. 3 and 4 only
d. 1, 3 and 4 only
15: Which one among the following languages has largest number of speakers in the world?
(a) Bengali
(b) French
(c) Japanese
(d) Portuguese