Physics A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ? Remain constant Dacrease Will increase first and then dcrease Increase Remain constant Dacrease Will increase first and then dcrease Increase ANSWER DOWNLOAD EXAMIANS APP
Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Remain unaffected Increase Decrease Have its shape changed Remain unaffected Increase Decrease Have its shape changed ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following waves is used for communication by artificial satellites ? Micro waves Frequency of 1016 series Radio waves M. Micro waves Frequency of 1016 series Radio waves M. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following occurred first ? Max Planck unveiled the Quantum Theory Guglielmo Marconi sent out the first wireless signals Albert Einstein propounded the General Theory of Relativity Wright Brothers successfully flew an aircraft Max Planck unveiled the Quantum Theory Guglielmo Marconi sent out the first wireless signals Albert Einstein propounded the General Theory of Relativity Wright Brothers successfully flew an aircraft ANSWER DOWNLOAD EXAMIANS APP
Physics The waves used in sonography are Sound waves Infra-red waves Micro waves Ultrasonic waves Sound waves Infra-red waves Micro waves Ultrasonic waves ANSWER DOWNLOAD EXAMIANS APP
Physics What is the resistance (in ohm) of an electrical component if a current of 0.1 A passes through it on application of 5 V of potential difference across it? 0.5 50 1 100 0.5 50 1 100 ANSWER DOWNLOAD EXAMIANS APP
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