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Physics Mcqs

Null vector is a vector which has________________?

  • (A)  Zero magnitude
  • (B)  No specified direction
  • (C)  Both A and B are correct
  • (D)  Both A and B are not correct
Submitted By :Ali Uppal


Submitted By :Ali Uppal


The direction of the vector product is given by______________?

  • (A)  Head to tail rule
  • (B)  Right-hand rule
  • (C)  Left-hand rule
  • (D)  Triangular rule
Submitted By :Ali Uppal


I ^. (j^ x k^) is equal to______________?

  • (A)  1
  • (B)  i^
  • (C)  j^
  • (D)  k^
Submitted By :Ali Uppal


For chain reaction to build up the size of the radioactive target should be______________?

  • (A)  Greater than the critical size
  • (B)  Less than the critical size
  • (C)  Equal to the critical size
  • (D)  All of above can build up a change reaction
Submitted By :Ali Uppal


One AMU is equal to__________________?

  • (A)  1.66 x 10-27kg
  • (B)  166 x 10-15ng
  • (C)  166 x 10-20g
  • (D)  All of above
Submitted By :Ali Uppal


During fusion of hydrogen into helium________________?

  • (A)  Energy is absorbed
  • (B)  Energy is released
  • (C)  Mass is increased due to energy absorption
  • (D)  Mass is reduced due to the energy released
Submitted By :Ali Uppal


In the nucleus of uranium, the number of neutrons will be _____________?

  • (A)  92
  • (B)  235
  • (C)  143
  • (D)  Different for different isotopes
Submitted By :Ali Uppal


According to which one of following law the density of atom is uniform ?

  • (A)  J.J.Thomson model
  • (B)  Rutherfords model
  • (C)  Bohrs model
  • (D)  All of the above laws contradict the statement
Submitted By :Ali Uppal


Which one is not a type of dynamic equilibrium ?

  • (A)  Rotational equilibrium
  • (B)  Translational equilibrium
  • (C)  Static equilibrium
  • (D)  Both A and C are corret answer
Submitted By :Ali Uppal