Physics The Hooke's law is valid for Entire elastic region of the stress strain curve Entire stress strain curve Only proportional region of the stress strain curve Elastic as well as plastic region of the stress strain curve Entire elastic region of the stress strain curve Entire stress strain curve Only proportional region of the stress strain curve Elastic as well as plastic region of the stress strain curve ANSWER DOWNLOAD EXAMIANS APP
Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 30 J 40 J 20 J 50 J 30 J 40 J 20 J 50 J ANSWER DOWNLOAD EXAMIANS APP
Physics Why does the sea appear blue in colour? Refraction of the sun light Interference of the sun light from water surface Reflection of the sun light from water surface Scattering of the sunlight by water molecules Refraction of the sun light Interference of the sun light from water surface Reflection of the sun light from water surface Scattering of the sunlight by water molecules ANSWER DOWNLOAD EXAMIANS APP
Physics Ball bearings are used in cycles, scooters etc to Reduce the friction between ground and the whee Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle None of these Reduce the friction between ground and the whee Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle None of these ANSWER DOWNLOAD EXAMIANS APP
Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is Of higher intensity when train arrives Of higher pitch when train arrives The same in both cases in all respects Of higher pitch when train departs Of higher intensity when train arrives Of higher pitch when train arrives The same in both cases in all respects Of higher pitch when train departs ANSWER DOWNLOAD EXAMIANS APP
Physics In nuclear reactor, heavy water is used as Moderator Fuel Atomic smasher Coolant Moderator Fuel Atomic smasher Coolant ANSWER DOWNLOAD EXAMIANS APP
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