Physics Which one of the following determines the sharpness of image in a camera ? Size of the camera The exposure time The aperture The focal length of the lens Size of the camera The exposure time The aperture The focal length of the lens ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 80 db Above 120 db Above 30 db Above 50 db Above 80 db Above 120 db Above 30 db ANSWER DOWNLOAD EXAMIANS APP
Physics Purity of a metal can be determined with the help of Archimedes principle Conservation of mass principle Boyle's law Pascal's law Archimedes principle Conservation of mass principle Boyle's law Pascal's law ANSWER DOWNLOAD EXAMIANS APP
Physics A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because Stone is heavier than parachute None of these A parachute has a larger surface area and air resistance is more Special mechanisms are present in parachute Stone is heavier than parachute None of these A parachute has a larger surface area and air resistance is more Special mechanisms are present in parachute ANSWER DOWNLOAD EXAMIANS APP
Physics If lift is going up with acceleration, the apparent weight of a body is May be more or less than true weight Less than the true weight Equal to the true weight More than the true weight May be more or less than true weight Less than the true weight Equal to the true weight More than the true weight ANSWER DOWNLOAD EXAMIANS APP
Physics A photostat machine works on Thermal image making Electrostatic image making Magnetic image making Electromagnetic image making Thermal image making Electrostatic image making Magnetic image making Electromagnetic image making ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS