Physics The atmospheric layer reflecting radio waves is called Stratosphere Ozonosphere Mesosphere Ionosphere Stratosphere Ozonosphere Mesosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 24 cm 12 cm 1 cm 6 cm 24 cm 12 cm 1 cm 6 cm ANSWER DOWNLOAD EXAMIANS APP
Physics When an electric bulb breaks, there is an explosive sound. That is due to The air outside rushing in to fill the vacuum inside the bulb The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly None of these The air outside rushing in to fill the vacuum inside the bulb The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not caused by atmospheric refraction of light ? Sun becoming visible two or three minutes before actual sunrise Sun appearing red at sunset Sun appearing higher in the sky than it actually is Twinkling of stars at night Sun becoming visible two or three minutes before actual sunrise Sun appearing red at sunset Sun appearing higher in the sky than it actually is Twinkling of stars at night ANSWER DOWNLOAD EXAMIANS APP
Physics For accurate scientific work, temperatures are often measured by Mercury thermometers Thermoelectric thermometers Platinum resistance thermometers Alcohol thermometers Mercury thermometers Thermoelectric thermometers Platinum resistance thermometers Alcohol thermometers ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not an aerosol? Smoke Fog Mud Dust Smoke Fog Mud Dust ANSWER DOWNLOAD EXAMIANS APP
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