Physics Water pipes in hilly areas often burst on a cold frosty night, because Water in the pipes freezes and on freezing water expands, so pipes break The material of which pipes are made contracts due to cold and so breaks None of these Frost makes the pipes rusty, so they break Water in the pipes freezes and on freezing water expands, so pipes break The material of which pipes are made contracts due to cold and so breaks None of these Frost makes the pipes rusty, so they break ANSWER DOWNLOAD EXAMIANS APP
Physics If the temperature of a place increases suddenly, the relative humidity Decreases Increases Remains constant Fluctuates Decreases Increases Remains constant Fluctuates ANSWER DOWNLOAD EXAMIANS APP
Physics A star appears twinkling in the sky because of Diffraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Diffraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Surface tension in a liquid is due to : Cohesive force between molecules Gravitational force between molecules Electrical force between molecules. Adhesive force betweenmolecules Cohesive force between molecules Gravitational force between molecules Electrical force between molecules. Adhesive force betweenmolecules ANSWER DOWNLOAD EXAMIANS APP
Physics An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speed of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct? Ve = Vp Ve > Vp Cannot be determined Ve < Vp Ve = Vp Ve > Vp Cannot be determined Ve < Vp ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of doing work is called Power Energy Capacity Current Power Energy Capacity Current ANSWER DOWNLOAD EXAMIANS APP
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