JEE Physics

Learn and practice General Knowledge questions and answers on Physics with very easy and understandable explanations. GK questions are very

01. The metal detectors installed at airports and other places for security purpose are based on the principle of ________.

11. If the magnitude of the resultant force of two forces is lesser than the magnitude of the larger force,

21. If a current I given by I0sin(ωt−π2) flows across an AC circuit with potential E=E0sinωt, then what is the

31. Charged particle ‘q’ moving through a magnetic field with velocity V will have zero magnetic force when the angle

41. Why is copper a preferred choice in making electrical wires? A. Copper is a good conductor of electricity B.

51. Which of the following statements is true for a dielectric? A. Dielectrics are superconductors at high temperature B. Dielectrics

61. Cyclotron can be used in _______. A. Particle therapy to treat cancer B. source of high energy beam for

71. Find the dielectric constant for material with electric susceptibility of 5. A. 4 B. 6 C. 7 D. 3

81. The maximum impedance of a transmission line 50 ohm and the standing wave ratio of 2.5 is _______. A.