Question

Choose The Correct Alternative .

1. IRNSS Satelite Is used____

(1) To get Directions of any location on Earth.

(2) To Study and forecast weather conditions Earth.

(3) To establish communication between different locations in the world.

(4) In Exploration and management of natural resources.

2. When electric current is passed through a solenoid,it shows magnetic lines of force similar to a ______

(1) Bar Magnet
(2)Horse shoe Magnet
(3) Disk Magnet
(4) Spherical Magnet

3. For an object at infinite distance from the earth, the value of acceleration due to gravity is ________

(1) infinite
(2) zero
(3) 9.8 m/s square
(4) 9.73 m/s square


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Answer 1

Step-by-step explanation:

1. IRNSS is an independent regional navigation satellite system being developed by India. It is designed to provide accurate position information service to users in India as well as the region extending up to 1500 km from its boundary, which is its primary service area.
2. When current is passed through a solenoid, the magnetic fields act almost like that of a bar magnet. One end acts as the magnetic north pole, and the other end acts as the magnetic south pole.