Physics Sound becomes hazardous noise pollution at decibels? Above 80 db Above 50 db Above 30 db Above 120 db Above 80 db Above 50 db Above 30 db Above 120 db ANSWER DOWNLOAD EXAMIANS APP
Physics If a body moves with a constant speed in a circle No work is done on it Its velocity remains constant No acceleration is produced in it No force acts on it No work is done on it Its velocity remains constant No acceleration is produced in it No force acts on it ANSWER DOWNLOAD EXAMIANS APP
Physics A barometer is kept inside a bell jar. Air is slowly pumped out of the jar. The mercury level starts falling The bell jar breaks up The mercury level does not change The mercury level starts rising The mercury level starts falling The bell jar breaks up The mercury level does not change The mercury level starts rising ANSWER DOWNLOAD EXAMIANS APP
Physics When an electric bulb breaks, there is an explosive sound. That is due to The compressed gases inside rushing out suddenly The chemical reaction between the gases inside the bulb The air outside rushing in to fill the vacuum inside the bulb None of these The compressed gases inside rushing out suddenly The chemical reaction between the gases inside the bulb The air outside rushing in to fill the vacuum inside the bulb None of these ANSWER DOWNLOAD EXAMIANS APP
Physics The absolute refractive index of any medium is always: 1 Less than one More than one 1 Less than one More than one ANSWER DOWNLOAD EXAMIANS APP
Physics Which measurement depends on gravitational force? All of these Mass Weight Height All of these Mass Weight Height ANSWER DOWNLOAD EXAMIANS APP