Physics Which one of the following determines the sharpness of image in a camera ? The aperture The focal length of the lens The exposure time Size of the camera The aperture The focal length of the lens The exposure time Size of the camera ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because External heat rays enter into the body through the woollen cloth It is a poor conductor of heat It reflects heat It is a good conductor of heat External heat rays enter into the body through the woollen cloth It is a poor conductor of heat It reflects heat It is a good conductor of heat 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 rising The mercury level does not change The bell jar breaks up The mercury level starts falling The mercury level starts rising The mercury level does not change The bell jar breaks up The mercury level starts falling ANSWER DOWNLOAD EXAMIANS APP
Physics If lift is going up with acceleration, the apparent weight of a body is Less than the true weight May be more or less than true weight Equal to the true weight More than the true weight Less than the true weight May be more or less than true weight Equal to the true weight More than the true weight ANSWER DOWNLOAD EXAMIANS APP
Physics The device used for locating submerged objects under sea is. Sonar Radar Laser Maser Sonar Radar Laser Maser ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following is credited for the Corpuscular theory of light? James Clerk Maxwell Christiaan Hyugens Albert Einstein Isaac Newton James Clerk Maxwell Christiaan Hyugens Albert Einstein Isaac Newton ANSWER DOWNLOAD EXAMIANS APP
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