Physics Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in 42 years 4.2 years 42 seconds 4.2 seconds 42 years 4.2 years 42 seconds 4.2 seconds ANSWER DOWNLOAD EXAMIANS APP
Physics Heat from the sun reaches earth by the process of All of these Conduction Convection Radiation All of these Conduction Convection Radiation ANSWER DOWNLOAD EXAMIANS APP
Physics When a steel ball is placed on the surface of mercury, it does not sink because Mercury is a semisolid The density of mercury is greater than that of steel Of the high viscosity of mercury Of the surface tension of mercury Mercury is a semisolid The density of mercury is greater than that of steel Of the high viscosity of mercury Of the surface tension of mercury ANSWER DOWNLOAD EXAMIANS APP
Physics Radio waves sent out by a radio stations are reflected by Troposphere Ionosphere Mesosphere Stratosphere Troposphere Ionosphere Mesosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is true of all simple machines? These make work easier None of these Work input > work output Both A & B These make work easier None of these Work input > work output Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a non renewable source of energy ? Coal Solar Wind Biogas Coal Solar Wind Biogas ANSWER DOWNLOAD EXAMIANS APP
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