726: Endoscopy, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of

(a) total internal reflection
(b) interference
(c) diffraction
(d) polarisation
727: Consider the following organisations :

I. International Bank for Reconstruction and Development
II. International Finance Corporation
III. International Fund for Agricultural Development
IV. International Monetary Fund

Which of these are agencies of the United Nations ?

(a) I and II
(b) II and III
(c) III and IV
(d) I, II, III and IV
728: In India, among the following locations, the Dutch established their earliest factory at

(a) Surat

(b) Pulicat

(c) Cochin

(d) Cassimbazar
729: Which of the following States border Uttar Pradesh?

1. Punjab
2. Rajasthan
3. Chhattisgarh
4. Jharkhand

Select the correct answer using the code given below:

(a) 1 and 3
(b) 1 and 4
(c) 2, 3 and 4
(d) 1, 2, 3 and 4
730: Which number will continue the following series?

3, 8, 15, 24, 35, 48, 63, 80,........

(a) 92

(b) 99

(c) 91

(d) 87