Physics The unit of measurement of noise is Decibel Amplifier Acoustics Hertz Decibel Amplifier Acoustics Hertz ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument which uses sound waves to measure the depth of oceans is Sonar Altimeter Radar Venturimeter Sonar Altimeter Radar Venturimeter ANSWER DOWNLOAD EXAMIANS APP
Physics Ice is packed in saw dust because Saw dust will not get melted easily. Saw dust does not stick to the ice. Saw dust is poor conductor of heat. Saw dust is a good conductor of heat. Saw dust will not get melted easily. Saw dust does not stick to the ice. Saw dust is poor conductor of heat. Saw dust is a good conductor of heat. ANSWER DOWNLOAD EXAMIANS APP
Physics Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit radio waves visible light X-rays ultraviolet light radio waves visible light X-rays ultraviolet light ANSWER DOWNLOAD EXAMIANS APP
Physics The different colours of different stars are due to the variation of Density Pressure Temperature Radiation from them Density Pressure Temperature Radiation from them ANSWER DOWNLOAD EXAMIANS APP
Physics The ordinary and maximum tolerance limit of sound by human being is 65 db to 75 db (decibel) 50 db to 70 db (decibel) 60 db to 80 db (decibel) 70 db to 85 db (decibel) 65 db to 75 db (decibel) 50 db to 70 db (decibel) 60 db to 80 db (decibel) 70 db to 85 db (decibel) ANSWER DOWNLOAD EXAMIANS APP
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