881: The area of an ellipse is twice that of a circle. The major diameter of the ellipse is twice that of the minor diameter. The radius of the circle is
(a) 50% of minor diameter of the ellipse
(b) 50% of major diameter of the ellipse
(c) minor diameter of the ellipse
(d) major diameter of the ellipse
882: Which one of the following subjects is under the Union List in the Seventh Schedule of the Constitution of Indian ?
(a) Regulation of labour and safety in mines and oilfields.
(b) Agriculture
(c) Fisheries
(d) Public health
883: 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
884: A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?
(a) 9.8 m/s
(b) 19.6 m/s
(c) 29.4 m/s
(d) 39.2 m/s
885: Consider the following statements:
Full convertibility of the rupee may mean
1. its free float with other international currencies.
2. its direct exchange with any other international currency at any prescribed place inside and outside the country.
3. it acts just like any other international currency.
Which of these statements are correct?
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3