Physics A hydrogen balloon floats up because of Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in height Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in height Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it ANSWER DOWNLOAD EXAMIANS APP
Physics The wave like properties of electrons are useful in Lasers All of these Magnifying objects Weather reports Lasers All of these Magnifying objects Weather reports ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. Oscillating electric field and magnetic field are perpendicular to each other. ANSWER DOWNLOAD EXAMIANS APP
Physics If the spinning speed of the earth is increased then the weight of body at the equator Same Decreases Double Increases Same Decreases Double Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Iron, water and air Iron, air and water Water, iron and air Air, water and iron Iron, water and air Iron, air and water Water, iron and air Air, water and iron ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a conductor of electricity ? Benzene Rubber Salt water Pure water Benzene Rubber Salt water Pure water ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS