Physics The threshold frequency is the frequency below which : Photo electric emission is not possible Photo current decreases with voltage Photo current is constant Photo current increases with voltage Photo electric emission is not possible Photo current decreases with voltage Photo current is constant Photo current increases with voltage ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these waves can be polarized ? Transverse waves on a string Light waves Sound waves in air Longitudinal waves on a string Transverse waves on a string Light waves Sound waves in air Longitudinal waves on a string ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space? 11.2 km/sec 18 km/sec 21 km/sec 35 km/sec 11.2 km/sec 18 km/sec 21 km/sec 35 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to : Reflection Forced vibrations Damped vibrations Refraction Reflection Forced vibrations Damped vibrations Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics A spring is an example of which of these Newton's 1st law Conservation of mass law Hooke's law Newton's 3rd law Newton's 1st law Conservation of mass law Hooke's law Newton's 3rd law ANSWER DOWNLOAD EXAMIANS APP
Physics Which planet has the lowest density? Saturn Jupiter Neptune Earth Saturn Jupiter Neptune Earth ANSWER DOWNLOAD EXAMIANS APP
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