156: Which one of the following pairs is correctly matched ?
(a) Nawgaon : Maharashtra
(b) Palamau : Gujarat
(c) Gir : Madhya Pradesh
(d) Amravati : West Bengal
157: 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
158: Regarding the atom of a chemical element, the magnetic quantum number refers to
(a) orientation
(b) shape
(c) size
(d) spin
159: A person starts from a point A and travels 3 km eastwards to B and then turns left and travels thrice that distance to reach C. He again turns left and travels five times the distance he covered between A and B and reaches his destination D. The shortest distance between the starting point and destination is
(a) 18 km
(b) 16 km
(c) 15 km
(d) 12 km
160: Ajanta Caves are located in the State of:
(a) Maharashtra
(b) Gujarat
(c) Tamil Nadu
(d) West Bengal