Physics Out of the following, which is not emitted by radioactive substance? Electromagnetic radiations Neutrons Electrons Alpha particles Electromagnetic radiations Neutrons Electrons Alpha particles ANSWER DOWNLOAD EXAMIANS APP
Physics A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be : (4/3)f (7/3)f (3/4)f F (4/3)f (7/3)f (3/4)f F ANSWER DOWNLOAD EXAMIANS APP
Physics Dioptre is the unit of Light intensity Sound intensity Focal length of a lens Power of a lens Light intensity Sound intensity Focal length of a lens Power of a lens ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has low temperature coefficient of expansion Has a very low specific heat Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion Has a very low specific heat Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands ANSWER DOWNLOAD EXAMIANS APP
Physics Green house effect is the heating up of the Earth's atmosphere which is due to The ultraviolet rays G-rays X-rays The infra-red rays The ultraviolet rays G-rays X-rays The infra-red rays ANSWER DOWNLOAD EXAMIANS APP
Physics A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of 30 m/s 25 m/s 18 m/s 36 m/s 30 m/s 25 m/s 18 m/s 36 m/s ANSWER DOWNLOAD EXAMIANS APP
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