Physics Lakes freeze in cold countries in winter, leaving the water underneath at 4°F 4°C 0°C 0°F 4°F 4°C 0°C 0°F ANSWER DOWNLOAD EXAMIANS APP
Physics While ascending a hill, the driver of the vehicle keeps the gear ratio Equal to 1 Greater than 1 Either equal to or greater than 1 Less than 1 Equal to 1 Greater than 1 Either equal to or greater than 1 Less than 1 ANSWER DOWNLOAD EXAMIANS APP
Physics Ultrasound devices operate with minimum frequency from 20kHz 60 kHz 35 kHz 45 kHz 20kHz 60 kHz 35 kHz 45 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics For a ray of light to suffer total internal reflection it has to pass from : Air to water Water to glass Glass to water Air to glass Air to water Water to glass Glass to water Air to glass ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following cannot be used for making lenses? Soil Water Plastic Glass Soil Water Plastic Glass ANSWER DOWNLOAD EXAMIANS APP
Physics When hot-water is sprinkled on a hotter glass tumbler, it breaks because Glass suddenly expands Glass suddenly contracts Water evaporates Glass reacts chemically with water Glass suddenly expands Glass suddenly contracts Water evaporates Glass reacts chemically with water ANSWER DOWNLOAD EXAMIANS APP
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