1671: Out of the four southern States : Andhra Pradesh, Karnataka, Kerala and Tamil Nadu, which shares boundaries with the maximum number of Indian States ?
(a) Andhra Pradesh only
(b) Karnataka only
(c) Each of Andhra Pradesh and Karnataka
(d) Each of Tamil Nadu and Kerala
1672: The National Highway No. 1 connects:
(a) Bombay to Calcutta
(b) Delhi to Calcutta
(c) Bombay to Delhi
(d) Delhi to Amritsar
1673: The original inhabitants of India are believed to be of the ethnic type known as
(a) Negrito
(b) Proto-Australoids
(c) Mongoloids
(d) Dravidians
1674: 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
1675: Sun's halo is produced by the refraction of light in
(a) Water vapour, in Stratus clouds
(b) Ice crystals in Cirro-Cumulus clouds
(c) Ice crystals in Cirrus clouds
(d) Dust particles in Stratus clouds