Physics A hydrogen balloon floats up because of Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it ANSWER DOWNLOAD EXAMIANS APP
Physics Stars appear twinkling because of ......... of light. Absorption Emission Reflection Scattering Absorption Emission Reflection Scattering ANSWER DOWNLOAD EXAMIANS APP
Physics For a freely falling body, the sum of kinetic energy and potential energy is always Unity Variable Same Zero Unity Variable Same Zero ANSWER DOWNLOAD EXAMIANS APP
Physics Danger signals are generally red as red light Has lowest velocity Gives comfort to eye Is least bright Undergoes least deviation Has lowest velocity Gives comfort to eye Is least bright Undergoes least deviation ANSWER DOWNLOAD EXAMIANS APP
Physics Red is used as an emergency or danger signal as It is a striking colour It is scattered It has very high energy Its wavelength is the longest It is a striking colour It is scattered It has very high energy Its wavelength is the longest ANSWER DOWNLOAD EXAMIANS APP
Physics Light year is a unit of Light Distance Time Intensity of light Light Distance Time Intensity of light ANSWER DOWNLOAD EXAMIANS APP
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