Physics Which among the following determines the pitch of a sound? Frequency Wavelength Amplitude Loudness Frequency Wavelength Amplitude Loudness ANSWER DOWNLOAD EXAMIANS APP
Physics Man perceives sound vibrations in the frequency ranges of 0 – 5 Hz 11 – 20 Hz 6 – 10 Hz 20 – 20000 Hz 0 – 5 Hz 11 – 20 Hz 6 – 10 Hz 20 – 20000 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics A bimetal made copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will Remain straight None of these Bend towards left Bend towards right Remain straight None of these Bend towards left Bend towards right ANSWER DOWNLOAD EXAMIANS APP
Physics What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius ? No change will happen All ice will melt All water will become ice Only some ice will melt No change will happen All ice will melt All water will become ice Only some ice will melt ANSWER DOWNLOAD EXAMIANS APP
Physics Alternating current is converted into direct current by a Oscillator Rectifier Transformer Dynamo Oscillator Rectifier Transformer Dynamo ANSWER DOWNLOAD EXAMIANS APP
Physics Natural radioactivity was discovered by Marie Curie Henri Becquerel Ernest Rutherfor Enrico Fermi Marie Curie Henri Becquerel Ernest Rutherfor Enrico Fermi ANSWER DOWNLOAD EXAMIANS APP
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