Physics What is the wavelength of visible spectrum ? 8500 A° – 9800 A° 7800 A° – 8000 A° 3900 A° – 7600 A° 1300 A°–3000 A° 8500 A° – 9800 A° 7800 A° – 8000 A° 3900 A° – 7600 A° 1300 A°–3000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics Which determines the frequency of a sound wave? Speed Amplitude Medium Source Speed Amplitude Medium Source ANSWER DOWNLOAD EXAMIANS APP
Physics The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes? 0.21041666666667 0.12847222222222 2.0958333333333 1.0479166666667 0.21041666666667 0.12847222222222 2.0958333333333 1.0479166666667 ANSWER DOWNLOAD EXAMIANS APP
Physics The quality or tone of a musical sound produced by a stringed instrument depends on Wave form of the sound Amplitude of vibration Length of the strings in the instrument Frequency of vibration Wave form of the sound Amplitude of vibration Length of the strings in the instrument Frequency of vibration ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels fastest in Vacuum Glass Water Air Vacuum Glass Water Air ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in air Increases with decrease of temperature Does not depend on temperature Decreases with decrease of temperature Decreases with increase of temperature Increases with decrease of temperature Does not depend on temperature Decreases with decrease of temperature Decreases with increase of temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS