Physics On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because: cohesion of mercury is greater than its adhesion with glass. mercury is a metal. density of mercury is greater than that of water. cohesion of water is greater than its adhesion with glass. cohesion of mercury is greater than its adhesion with glass. mercury is a metal. density of mercury is greater than that of water. cohesion of water is greater than its adhesion with glass. ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to convert solar energy into electricity is Photovoltaic cell Electrochemical cell Galvanic cell Daniell cell Photovoltaic cell Electrochemical cell Galvanic cell Daniell cell ANSWER DOWNLOAD EXAMIANS APP
Physics The phenomenon which causes mirage is Polarisation Interference Total internal reflection Diffraction Polarisation Interference Total internal reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics At boiling point of liquids, its Vapour pressure decreases Temperature increases Atmospheric pressure increases Temperature remains constant Vapour pressure decreases Temperature increases Atmospheric pressure increases Temperature remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an Audible wave Ultrasonic wave Microwave Infrasonic wave Audible wave Ultrasonic wave Microwave Infrasonic wave ANSWER DOWNLOAD EXAMIANS APP
Physics Steam at 100°C causes more severe burns than water at 100°C because Water has latent heat of fusion Steam has no specific heat capacity Steam has latent heat of vaporisation Water has no specific heat capacity Water has latent heat of fusion Steam has no specific heat capacity Steam has latent heat of vaporisation Water has no specific heat capacity ANSWER DOWNLOAD EXAMIANS APP
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