An electric bulb running on 18 V battery draws 3A of electric current. The resistance of the bulb will be 6 Ω.

Answer: C) Indus River Explanation: The name India is originally derived from the name of the river Sindhu (Indus River).

Answer: A) detecting and locating the position of objects such as Aeroplanes Explanation: RADAR - RAdio Detection And Ranging. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects.    Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.   Radio waves from the transmitter reflect off the object and return to the receiver, giving information about the object's location and speed.

Answer: A) 18 Explanation: (300 – 101)/11 = 199/11 = 18 1/1118 Numbers.