Physics The speed of light in air is 8 × 103 m/s Infinity 3 × 10–8 m/s 3 × 108 m/s 8 × 103 m/s Infinity 3 × 10–8 m/s 3 × 108 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following determines the sharpness of image in a camera ? The exposure time The aperture Size of the camera The focal length of the lens The exposure time The aperture Size of the camera The focal length of the lens ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 3900 A° – 7600 A° 8500 A° – 9800 A° 1300 A°–3000 A° 7800 A° – 8000 A° 3900 A° – 7600 A° 8500 A° – 9800 A° 1300 A°–3000 A° 7800 A° – 8000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics Electric current is measured by which instrument? Ammeter Sinometer Barometer Voltmeter Ammeter Sinometer Barometer Voltmeter ANSWER DOWNLOAD EXAMIANS APP
Physics A body absorbs heat most if it is White and rough White and smooth Black and smooth Black and rough White and rough White and smooth Black and smooth Black and rough ANSWER DOWNLOAD EXAMIANS APP
Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Not work at all Work with reduced efficiency Work with increased efficiency Work as efficiently as on the earth Not work at all Work with reduced efficiency Work with increased efficiency Work as efficiently as on the earth ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS