901 A photon is always considered to be: ________? Physics Medium Full question → A Moving with speed of light B At rest C In accelerated form D Moving with speed of sound
902 A black body emitting all the radiation in the visible region appears________. Physics Medium Full question → A Green B White C Blue D Black
903 Compton’s effects was presented by: ________? Physics Medium Full question → A Mosely B Marley C Arthur Holly Compton D Stefan Boltzman
904 Due to the relative motion of observer and frame of reference time: Physics Medium Full question → A Dilates B Contracts C Constant D Uniform
905 The mass of an object will get doubled at the speed of __________? Physics Medium Full question → A 2.6×10⁴ m/s B 2.6×10⁶ m/s C 2.6×10² m/s D 2.6×10 m/s
906 Mass-Energy relation given by Einstein in represented as: ____________? Physics Medium Full question → A E=mc² B E=hf C E=m²c D E=mv²
907 A black body has the property to _____________ all the radiation entering it. Physics Medium Full question → A Exude B Reflect C Absorb D None of these
908 Modern system of navigation satellites called ___________? Physics Medium Full question → A Inertia frames of reference B Navstar C Proton D None of these
909 As a result of annihilation of electron and positron, number of γ–ray (Gama ray) photons are: ________? Physics Medium Full question → A Two B Three C Four D One
910 A.C. and D.C. have the same __________? Physics Medium Full question → A Affect in charging a capacitor B Affect in charging a battery C Affect while passing through an inductance D Heating effect through a resistance
911 A low resistance which can bypass a current is: _____________? Physics Medium Full question → A Divider B Shunt C Multiplier D None of these
912 1 Weber / m² is equal to __________? Physics Medium Full question → A One gauss B 3×10¹⁰ gauss C 10⁴ gauss D 1/3×10^-8 gauss
913 An electric motor could be used as a: ___________? Physics Medium Full question → A Battery B Capacitor C Dynamo D Transformer
914 The dimension of velocity are __________? Physics Medium Full question → A LT B LMT C LMT^-1 D LT^-1
915 An example of scalar quantity is _________? Physics Medium Full question → A Displacement B Speed C Velocity D Acceleration
916 For anti-parallel vectors angle is equal to ____________? Physics Medium Full question → A 90° B 180° C 270° D None of these
917 A vector which has magnitude one is called _________? Physics Medium Full question → A A resultant vector B A unit vector C A null vector D A position vector
918 If Ax is -ve and Ay is +ve, the resultant is:___________? Physics Medium Full question → A 2nd B 4th C 3rd D 1st
919 If vectors a and b are antiparallel to each other then their resultant is ___________? Physics Medium Full question → A a−b B 2b C 2a D a+b
920 What is the SI unit of acceleration is ___________? Physics Medium Full question → A Meter per secound B meter per second square C Both D All