2116: Assertion (A)
Photosynthesis and vision are the phenomenon of visible light
Reason (R)
The visible light is absorbed by small particles containing chlorophylls as well as the retina of the eye
(a) if A and R both are correct and R is the correct explanation of A
(b) if A and R both are correct but R is not the correct explanation of A
(c) if A is incorrect but R is correct
(d) if A is correct but R is incorrect
2117: A person walks 10 km north from a point, then he moves 20 km south and subsequently he turns 20 km north. He again turns 20 km south and then moves 10 km east. How far is he from the starting point?
(a) 10 km
(b) 20 km
(c) 30 km
(d) None of the above
2118: Alam Khan, one of those who invited Babar to invade India was
(a) An uncle of Ibrahim Lodhi and a pretender to the throne of Delhi
(b) A cousin of Ibrahim Lodhi who was ill-treated and expelled form the country
(c) The father of Dilawar Khan to whom cruel treatment was meted out by Ibrahim Lodi
(d) A high official in Punjab province who was very much discontented with Ibrahim Lodhi's treatment to his tribe.
2119: Two persons A and B get the same salary. Their basic pays are different. Their allowances are 65% and 80% of their basic pays respectively. What is the ratio of their basic pays?
(a) 7 : 5
(b) 17 : 15
(c) 11 : 10
(d) 12 : 11
2120: The tendency of a liquid drop to contract and occupy minimum area is due to
(a) viscosity
(b) surface tension
(c) density
(d) vapour pressure