316: If you travel by road from Kohima to Kottayam, what is the minimum number of States within India through which you can travel, including the origin and the destination?
(a) 6
(b) 7
(c) 8
(d) 9
317: When a CD (Compact Disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of
(a) reflection and diffraction
(b) reflection and transmission
(c) diffraction and transmission
(d) refraction, diffraction and transmission
318: The Panchayati Raj was first introduced in the States of Rajasthan and
(a) Andhra Pradesh
(b) Bihar
(c) Gujarat
(d) Orissa
319: Cryogenic engines find applications in
(a) sub-marine propulsion
(b) frost-free refrigerators
(c) rocket technology
(d) researches in superconductivity
320: In the Mekong-Ganga Cooperation, an initiative of six countries, which of the following is/are not a participant/ participants?
1. Bangladesh
2. Cambodia
3. China
4. Myanmar
5. Thailand
Select the correct answer using the code given below.
(a) 1 only
(b) 2, 3 and 4
(c) 1 and 3
(d) 1, 2 and 5