Physics The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because The bell jar is too small The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar The ringing is not loud enough The bell jar is too small The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar The ringing is not loud enough ANSWER DOWNLOAD EXAMIANS APP
Physics The radiant energy having lowest energy is Visible light UV rays Microwave radiation Gamma rays Visible light UV rays Microwave radiation Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics In a Laser (say neon laser) all the atoms emit the light waves of Same frequency Same phase All of these Same amplitude Same frequency Same phase All of these Same amplitude ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic domains normally occur in All of these Iron Copper Silver All of these Iron Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the unit of perceived loudness of sound ? Hertz Phon Decibel Sone Hertz Phon Decibel Sone ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Decreases Increases Remains constant Decreases and then remains constant Decreases Increases Remains constant Decreases and then remains constant ANSWER DOWNLOAD EXAMIANS APP
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