Physics Which of the following is not caused by atmospheric refraction of light ? Twinkling of stars at night Sun becoming visible two or three minutes before actual sunrise Sun appearing red at sunset Sun appearing higher in the sky than it actually is Twinkling of stars at night Sun becoming visible two or three minutes before actual sunrise Sun appearing red at sunset Sun appearing higher in the sky than it actually is ANSWER DOWNLOAD EXAMIANS APP
Physics Which best describes how air moves during convection? Cool air is replaced by warm air Warm air falls down Cool air falls down Air always falls down Cool air is replaced by warm air Warm air falls down Cool air falls down Air always falls down ANSWER DOWNLOAD EXAMIANS APP
Physics The type of mirror used in automobiles to see the traffic on the rear side is Convex Concave Plane Plano-Convex Convex Concave Plane Plano-Convex ANSWER DOWNLOAD EXAMIANS APP
Physics The dimensional formula for universal gravitational constant is M–2 M 1L3T2 M–1L3T–2 ML2T–2 M–2 M 1L3T2 M–1L3T–2 ML2T–2 ANSWER DOWNLOAD EXAMIANS APP
Physics When a person sitting on a swing stands up on the swing, the frequency of oscillation Increases Does not change Decreases Becomes infinite Increases Does not change Decreases Becomes infinite ANSWER DOWNLOAD EXAMIANS APP
Physics Alcohol is more volatile than water because ________ is lower than water. Its boiling point Its surface tension Its density Its viscosity Its boiling point Its surface tension Its density Its viscosity ANSWER DOWNLOAD EXAMIANS APP
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