Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 8 T 2 T 4 T 1 T 8 T 2 T 4 T 1 T ANSWER DOWNLOAD EXAMIANS APP
Physics A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments Depends on the total mass of all the fragments Depends on the speeds of various fragments Is zero Is infinity Depends on the total mass of all the fragments Depends on the speeds of various fragments Is zero Is infinity ANSWER DOWNLOAD EXAMIANS APP
Physics What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius ? Only some ice will melt All ice will melt All water will become ice No change will happen Only some ice will melt All ice will melt All water will become ice No change will happen ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short wave broadcasts are made by nearby radio stations. ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? J.J Thomson Marie Curie James Chadwick W.C Roentgen J.J Thomson Marie Curie James Chadwick W.C Roentgen ANSWER DOWNLOAD EXAMIANS APP
Physics The waves used in sonography are Infra-red waves Micro waves Sound waves Ultrasonic waves Infra-red waves Micro waves Sound waves Ultrasonic waves ANSWER DOWNLOAD EXAMIANS APP
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