Physics Lakes freeze in cold countries in winter, leaving the water underneath at 0°C 4°C 0°F 4°F 0°C 4°C 0°F 4°F ANSWER DOWNLOAD EXAMIANS APP
Physics At the center of the sun, fusion converts hydrogen into Carbon Water Helium Plutonium Carbon Water Helium Plutonium ANSWER DOWNLOAD EXAMIANS APP
Physics If an object moves with constant velocity, None of these It must have constant speed in constant direction It must have constant direction It must have constant speed None of these It must have constant speed in constant direction It must have constant direction It must have constant speed ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following wavelengths of light is most effective in photosynthesis ? Blue Green Yellow Orange Blue Green Yellow Orange ANSWER DOWNLOAD EXAMIANS APP
Physics When an atom loses an electron it becomes Neutron Negative ion None of these Positive ion Neutron Negative ion None of these Positive ion ANSWER DOWNLOAD EXAMIANS APP
Physics What is refractive index ? It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. ANSWER DOWNLOAD EXAMIANS APP