Physics A doppler effect occurs when a source of sound moves Towards you Both A & B None of these Away from you Towards you Both A & B None of these Away from you ANSWER DOWNLOAD EXAMIANS APP
Physics Sound of frequency below 20 Hz is called audio sounds infrasonic supersonics ultrasonic audio sounds infrasonic supersonics ultrasonic ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following animals can hear ultrasonic sound ? Rat Squirrel Cat Bat Rat Squirrel Cat Bat ANSWER DOWNLOAD EXAMIANS APP
Physics Isotopes of an element contain the same number of neutrons but different number of protons the same number of protons but different number of neutrons equal number of nucleons equal number of protons and electrons the same number of neutrons but different number of protons the same number of protons but different number of neutrons equal number of nucleons equal number of protons and electrons ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in air Decreases with decrease of temperature Decreases with increase of temperature Does not depend on temperature Increases with decrease of temperature Decreases with decrease of temperature Decreases with increase of temperature Does not depend on temperature Increases with decrease of temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a compound machine? Screw Bicycle Ramp Knife Screw Bicycle Ramp Knife ANSWER DOWNLOAD EXAMIANS APP
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