Physics What is the principle of a ''Life Jacket"? It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat The person can sit on it like a raft It provides oxygen to a drowning person It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat The person can sit on it like a raft It provides oxygen to a drowning person ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following devices can be used to detect radiant heat ? Liquid thermometer Thermopile Six's maximum and minimum thermometer Constant volume air thermometer Liquid thermometer Thermopile Six's maximum and minimum thermometer Constant volume air thermometer ANSWER DOWNLOAD EXAMIANS APP
Physics Fish and other aquatic creatures can live inside a deep frozen pond because Fish are cold-blooded animals They can adapt themselves to live in ice There will always be water just beneath the ice level Ice is a bad conductor of heat Fish are cold-blooded animals They can adapt themselves to live in ice There will always be water just beneath the ice level Ice is a bad conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics Which metal is the best conductor of heat? Silver Copper All of these Gold Silver Copper All of these Gold ANSWER DOWNLOAD EXAMIANS APP
Physics Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? 1.8 km, 0.15 km 2.2 km, 0.20 km 3.3 km, 0.30 km 2.8 km, 0.25 km 1.8 km, 0.15 km 2.2 km, 0.20 km 3.3 km, 0.30 km 2.8 km, 0.25 km ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following options correctly explains the term heat budget? It is a mode of transfer of heat through matter by molecular activity. It is the balance between incoming and outgoing radiation It is the radiation from the earth in the form of long waves. It is the amount of heat which the surface of earth receives from the sun. It is a mode of transfer of heat through matter by molecular activity. It is the balance between incoming and outgoing radiation It is the radiation from the earth in the form of long waves. It is the amount of heat which the surface of earth receives from the sun. ANSWER DOWNLOAD EXAMIANS APP
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