Physics Planets do not twinkle because They emit light of a constant intensity Their distance from the earth does not change with time They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light They emit light of a constant intensity Their distance from the earth does not change with time They are nearer to earth and hence we receive a greater amount of light. They are very far away from the earth resulting in decrease in intensity of light ANSWER DOWNLOAD EXAMIANS APP
Physics The sound produced by a bat is– Ultrasonic Subsonic Audible Infrasonic Ultrasonic Subsonic Audible Infrasonic ANSWER DOWNLOAD EXAMIANS APP
Physics The pressure exerted by a 760 mm column of mercury at 0°C is known as 1 bar 1 pascal 1 atmosphere 1 poise 1 bar 1 pascal 1 atmosphere 1 poise ANSWER DOWNLOAD EXAMIANS APP
Physics A cyclist leans inwards when he is negotiating a curve so that No frictional force may be produced between the wheels and the axle Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. His weight may be reduced He may increase his speed No frictional force may be produced between the wheels and the axle Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. His weight may be reduced He may increase his speed ANSWER DOWNLOAD EXAMIANS APP
Physics The dimension of which of the following is the same as that of impulse ? Torque Volume Momentum Change in the rate of momentum Torque Volume Momentum Change in the rate of momentum ANSWER DOWNLOAD EXAMIANS APP
Physics Time of exposure required for taking photograph of an object depends upon the Size of the object Brightness of the object Proximity of object Skill of photographer Size of the object Brightness of the object Proximity of object Skill of photographer ANSWER DOWNLOAD EXAMIANS APP
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