2981: Which one of the following pairs of primitive tribes and places of their in-habitation is not correctly matched ?
(a) Buksa : Pauri-Garhwal
(b) Kol : Jabalpur
(c) Munda : Chhotanagpur
(d) Korba : Kodagu
2982: A shop offers 10 percent discount on the purchase of any article. It also offers an additional 12 percent discount if the payment is made in cash. If the original price of the item is Rs. 250, then what is its actual price if paid in cash?
(a) Rs. 220
(b) Rs. 195
(c) Rs. 198
(d) None of these
2983: A spherical body moves with a uniform angular velocity around a circular path of radius r. Which one of the following statements is correct?
(a) The body has no acceleration
(b) The body has a radial acceleration 2r directed towards the centre of the path.
(c) The body has a radial acceleration 2/5 2r directed away from the centre of the path.
(d) The body has an acceleration 2r tangential to its path
2984: With reference to forced labour (Vishti) in India during the Gupta period, which one of the following statements is correct?
(a) It was considered a source of income for the State, a sort of tax paid by the people.
(b) It was totally absent in the Madhya Pradesh and Kathiawar regions of the Gupta Empire.
(c) The forced labourer was entitled to weekly wages.
(d) The eldest son of the labourer was sent as the forced labourer.
2985: Why camphor disappears when kept on a plate?
(a) It sublimes
(b) It reacts with the metal of the container
(c) It reacts with the gases of the air
(d) None of the above