Physics Which of the following are used for accurately measuring very small time intervals ? Pulsars White dwarfs Quartz clocks Atomic clocks Pulsars White dwarfs Quartz clocks Atomic clocks ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? Its energy levels are very close to each other It is very small in size It is highly electropositive It has only one electron Its energy levels are very close to each other It is very small in size It is highly electropositive It has only one electron ANSWER DOWNLOAD EXAMIANS APP
Physics The resistance of a conductor is inversely proportional to its: Temperature Area of cross section Resistivity Length Temperature Area of cross section Resistivity Length ANSWER DOWNLOAD EXAMIANS APP
Physics The dimension of Planck constant equals to that of Angular momentum Power Energy Momentum Angular momentum Power Energy Momentum ANSWER DOWNLOAD EXAMIANS APP
Physics Supercooling is cooling of liquid ________ At melting point Below melting point Below freezing point Above melting point At melting point Below melting point Below freezing point Above melting point ANSWER DOWNLOAD EXAMIANS APP
Physics Why is it difficult to breathe at higher altitudes? Due to ozone Due to low air pressure Due to low temperature Due to high humidity Due to ozone Due to low air pressure Due to low temperature Due to high humidity ANSWER DOWNLOAD EXAMIANS APP
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