General Science Balloons are filled with Oxygen Nitrogen Argon Helium Oxygen Nitrogen Argon Helium ANSWER DOWNLOAD EXAMIANS APP
General Science The dark lines in the solar spectrum are due to Destructive interference between waves of certain definite wavelengths. Absence of corresponding wavelengths from the light emitted by the core of the sun. Absorption of corresponding wavelengths by the prism used in the photograph. Absorption of corresponding wavelengths by the outer layers of the sun. Destructive interference between waves of certain definite wavelengths. Absence of corresponding wavelengths from the light emitted by the core of the sun. Absorption of corresponding wavelengths by the prism used in the photograph. Absorption of corresponding wavelengths by the outer layers of the sun. ANSWER DOWNLOAD EXAMIANS APP
General Science Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material? Radium Plutonium Radan Thorium Radium Plutonium Radan Thorium ANSWER DOWNLOAD EXAMIANS APP
General Science Which metal pollute the air of a big city? Cadmium Lead Copper Chromium Cadmium Lead Copper Chromium ANSWER DOWNLOAD EXAMIANS APP
General Science Knot is a unit of speed of which of the following? Sound waves Aeroplane Light waves Ship Sound waves Aeroplane Light waves Ship ANSWER DOWNLOAD EXAMIANS APP
General Science Which of the following is used as a moderator in nuclear reactor? Ordinary water Thorium Graphite Radium Ordinary water Thorium Graphite Radium ANSWER DOWNLOAD EXAMIANS APP
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