461: A and B are two fixed points in a field. A cyclist C moves such that ACB is always a right angle. In this context, which one of the following statements is correct?

(a) The path followed by the cyclist is an ellipse

(b) The path followed by the cyclist is a circle

(c) The path followed by the cyclist is an exponential curve

(d) This type of motion is not possible
462: In the above figure, ABCD is a cyclic quadrilateral, AB = BC and angle BAC = 70°, then angle ADC is

(a) 40°
(b) 80°
(c) 110°
(d) 140°
463: The first Asian Games were held at:

(a) New Delhi in 1950

(b) Bangkok in 1952

(c) Singapore in 1952

(d) Kuala Lumpur in 1952
464: Match List I with List II and select the correct answer using the codes given below the lists :

List I List II

(Minerals) (Mining area)

I. Graphite (A) Bellary
II. Lead (B) Didwana
III. Salt (C) Rampa
IV. Silver (D) Zawar

Codes:

(a) I-C, II-D, III-A, IV-B
(b) I-A, II-D, III-B, IV-C
(c) I-C, II-A, III-D, IV-B
(d) I-B, II-C, III-A, IV-D
465: Consider the following pairs :

Protected area---Well known for

1. Bhiterkanika, Orissa---Salt Water Crocodile

2. Desert NationalPark, Rajasthan---Great Indian Bustard

3. Eravikulam, Kerala---Hoolak Gibbon

Which of the pairs given above is/are correctly matched ?

(a) 1 only
(b) 2 only
(c) 1 and 2 only
(d) 1, 2 and 3