826: Cobalt-60 is commonly used in radiation therapy because it emits

(a) alpha rays.

(b) beta rays.

(c) gamma rays.

(d) X-rays.
827: Match List I with List II and select the correct answer using the codes given below the Lists :

List I (Amendments to the Constitution)
I. The Constitution (Sixty-ninth Amendment) Act, 1991
II. The Constitution (Seventy-fifth Amendment) Act, 1994
III. The Constitution (Eightieth Amendment) Act, 2000
IV. The Constitution (Eighty-third Amendment) Act, 2000

List II (Contents)
(A) Establishment of State level Rent Tribunals
(B) No reservations for Scheduled Castes in Panchayats in Arunachal Pradesh
(C) Constitution of Panchayats in Villages or at other local levels
(D) Accepting the recommendations of the Tenth Finance Commission
(E) According the status of National Capital Territory to Delhi

Codes :
(a) I-E, II-A, III-D, IV-B
(b) I-A, II-E, III-C, IV-D
(c) I-E, II-A, III-C, IV-D
(d) I-A, II-E, III-D, IV-B
828: Where were the Ghadar revolutionaries, who became active during the outbreak of the World War I based?

(a) South America
(b) North America
(c) Central America
(d) West America
829: Which one of the following is not a site for in-situ method of conservation of flora?

(a) Wildlife Sanctuary
(b) Botanical Garden
(c) National Park
(d) Biosphere Reserve
830: The Panchayati Raj was first introduced in the States of Rajasthan and

(a) Andhra Pradesh

(b) Bihar

(c) Gujarat

(d) Orissa