506: Consider the following events :
I. Indigo Revolt
II. Santhal Rebellion
III. Deccan Riot
IV. Mutiny of the Sepoys
The correct chronological sequence of these events is :
(a) IV, II, I, III
(b) IV, II, III, I
(c) II, IV, III, I
(d) II, IV, I, III
510: A boy carved his initials on the-bark of a tree at a height of 2.5 m above the ground when the tree was 5 m tall. In 10 years the tree attained a height of 15 m. The initials carved by the boy 10 years ago will now be found:
(a) At 2.5 m above the ground
(b) At 7.5 m above the ground
(c) At 12.5 m above the ground
(d) At 15.0 m above the ground