541: Indian Airlines (New name : Indian) have redesigned their logo which is a graphic wheel. This logo has been inspired from which one of the following?
(a) Sun Temple, Konark
(b) Khajuraho Temple
(c) Hampi Temples
(d) Mamallapuram Temples
542: Sound waves travel at 300 m/s. Sound produced at a point is heard by a person after 5 seconds while the same sound is heard by another person after 6 seconds. What could be the maximum and minimum distances between the two persons?
(a) 1.8 km, 0.15 km
(b) 2.2 km, 0.20 km
(c) 2.8 km, 0.25 km
(d) 3.3 km 0.3 km
543: Which one of the following has a greater perimeter than the rest ?
(a) A square with an area of 36 sq cm
(b) An equilateral triangle with a side of 9 cm
(c) A rectangle with 10 cm as length and 40 sq cm as area
(d) A circle with a radius of 4 cm
544: Conception generally takes place at the time of:
(a) Menses
(b) Before menses
(c) Immediately after menses
(d) Two weeks after menses
545: Which one of the following pairs of primitive tribes and places of their in-habitation is not correctly matched ?
(a) Buksa : Pauri-Garhwal
(b) Kol : Jabalpur
(c) Munda : Chhotanagpur
(d) Korba : Kodagu