Physics What is the minimum distance (in metres) required to hear an echo? 13 10 21 17 13 10 21 17 ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Becomes half Is also doubled Become 4 times Becomes 1/4 th Becomes half Is also doubled Become 4 times Becomes 1/4 th ANSWER DOWNLOAD EXAMIANS APP
Physics What device converts light energy to electrical energy? Heliostats Thermocouple Photovoltaic cell Photodiode Heliostats Thermocouple Photovoltaic cell Photodiode ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Electromagnetic waves are transverse waves Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. Electromagnetic waves are transverse waves Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. ANSWER DOWNLOAD EXAMIANS APP
Physics Light houses are places with powerful lights to : Indicate to the incoming warships, the location of a harbour during night Guide and resolve traffic jams in crowded metro-cities during nights Guide and help large crowds at religious gathering during nights Guide and warn the ships coming from different directions in the ocean Indicate to the incoming warships, the location of a harbour during night Guide and resolve traffic jams in crowded metro-cities during nights Guide and help large crowds at religious gathering during nights Guide and warn the ships coming from different directions in the ocean ANSWER DOWNLOAD EXAMIANS APP
Physics The radiant energy having lowest energy is Microwave radiation UV rays Gamma rays Visible light Microwave radiation UV rays Gamma rays Visible light ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS