Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 50 J 40 J 30 J 20 J 50 J 40 J 30 J 20 J ANSWER DOWNLOAD EXAMIANS APP
Physics Alpha particle is the nucleus of an atom of Lithium Helium Hydrogen Oxygen Lithium Helium Hydrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? Marie Curie J.J Thomson James Chadwick W.C Roentgen Marie Curie J.J Thomson James Chadwick W.C Roentgen ANSWER DOWNLOAD EXAMIANS APP
Physics A photostat machine works on Thermal image making Electromagnetic image making Magnetic image making Electrostatic image making Thermal image making Electromagnetic image making Magnetic image making Electrostatic image making ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 6 cm 1 cm 12 cm 24 cm 6 cm 1 cm 12 cm 24 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Purity of a metal can be determined with the help of Archimedes principle Boyle's law Conservation of mass principle Pascal's law Archimedes principle Boyle's law Conservation of mass principle Pascal's law ANSWER DOWNLOAD EXAMIANS APP