Physics Super conductors are substances that Offer high resistance to the flow of electric current Conduct electricity at low temperature Conduct electricity at high temperature Offer minimum resistance to flow of electric current Offer high resistance to the flow of electric current Conduct electricity at low temperature Conduct electricity at high temperature Offer minimum resistance to flow of electric current ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Superconductors Perfect conductors Semi conductors Dielectrics Superconductors Perfect conductors Semi conductors Dielectrics ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because It is a good conductor of heat External heat rays enter into the body through the woollen cloth It reflects heat It is a poor conductor of heat It is a good conductor of heat External heat rays enter into the body through the woollen cloth It reflects heat It is a poor conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics According to the theory of relativity, which of the following always remains constant ? Length of an object Space Time Velocity of light Length of an object Space Time Velocity of light ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following criterion is used for any metal to be used as a cooking material ? More specific heat Less thermal conductivity Less electrical conductivity More thermal conductivity More specific heat Less thermal conductivity Less electrical conductivity More thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Physics 'Parsec' is the unit measurement of Astronomical distance Brightness of heavenly bodies Density of stars Orbital velocity of giant stars Astronomical distance Brightness of heavenly bodies Density of stars Orbital velocity of giant stars ANSWER DOWNLOAD EXAMIANS APP
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