The gases used in different types of welding would include A) Oxygen and Hydrogen B) Oxygen, Hydrogen, Acetylene and Nitrogen C) Oxygen, Acetylene and Argon D) Oxygen and Acetylene
Ganda Singh border connects A) Sialkot – Ferozpur B) Ferozpur – Kasur C) Amritser – Lahore D) None of these
Optical Fiber works on the principle of A) Scattering B) Total Internal Reflection C) Interference D) Principle of Refraction
Who among the following proposed laws of planetary motion? A) Roger Bacon B) Isaac Newton C) Johannes Kepler D) Galileo