Physics Why does a cannon recoil after firing ? Newton's first law of motion Conservation of energy Newton's third law of motion Backward thrust of gases produced Newton's first law of motion Conservation of energy Newton's third law of motion Backward thrust of gases produced ANSWER DOWNLOAD EXAMIANS APP
Physics In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is Decreased by 4% Increased by 2% Increased by 4% Decreased by 2% Decreased by 4% Increased by 2% Increased by 4% Decreased by 2% ANSWER DOWNLOAD EXAMIANS APP
Physics The pressure exerted by a 760 mm column of mercury at 0°C is known as 1 pascal 1 poise 1 bar 1 atmosphere 1 pascal 1 poise 1 bar 1 atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Compressions and Rarefactions are characteristic of Transverse waves Neither of A & B Both A & B Longitudinal waves Transverse waves Neither of A & B Both A & B Longitudinal waves ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? The density of needle is less than that of water Due to surface tension Due to its shape It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to surface tension Due to its shape It will remain under the water, when it will displace more water than its weight ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of light will be minimum while passing through Glass Water Vaccum Air Glass Water Vaccum Air ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS