2156: When one enters a dark room, he is not able to see anything but after some time his vision improves. This is because:
(a) The retina of the eye comes forward
(b) The retina of the eye moves backward
(c) The pupil of the eye contracts
(d) The pupil of the eye dilates
2157: Convertibility of rupee implies
(a) being able to convert rupee notes into gold
(b) allowing the value of rupee to be fixed by market forces
(c) freely permitting the conversion of rupee to other currencies and vice versa
(d) developing an international market for currencies in India
2158: Assertion (A):
A Chemical reaction becomes faster at higher temperatures.
Reason (R):
At higher temperatures, molecular motion becomes more rapid.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is fasle but R is true
2159: Consider the following statements :
Hard water is not suitable for
I. drinking.
II. washing cloths with soap.
III. use in boilers.
IV. irrigating crops.
Which of these statements are correct ?
(a) I and III
(b) II and III
(c) I, II and IV
(d) I, II, III and IV
2160: Which one of the following statements is correct ?
(a) All the members of the Rajya Sabha are elected by State Legislative Assemblies
(b) As the Vice-President is the ex-officio Chairman of the Rajya Sabha, only a member of the Rajya Sabha can contest for the office of the Vice-President
(c) A point of difference between the Lok Sabha and the Rajya Sabha is that while a candidate to the Lok Sabha can contest from any State in India, a candidate to the Rajya Sabha should ordinarily be are resident of the State from where he is contesting
(d) The Constitution of India explicitly prohibits the appointment of a nominated member of Rajya Sabha to the post of a minister