an electron and proton are placed in an electric field.The forces acting on them are `bar(F_(1))` and `bar(F_(2))` and their acclelerations are `bar(a_(1))` and `bar(a_(2))` respectively then

A proton and an electron are placed in an electric field. The forces acting on them are F_(1) and F_(2) and their acceleration are a_(1) and a_(2) respectively. Then

A deuteron and an alpha -particle are placed in an electric field.The forces acting on them are F_(1) and F_(2) and their accelerations are a_(1) and a_(2) respectively. (i) F_(1) = F_(2) (ii) F_(1) != F_(2) (iii) a_(1) = a_(2) (iv) a_(1) != a_(2)

A deuteron and an alpha -particle are placed in an electric field.The forces acting on them are F_(1) and F_(2) and their accelerations are a_(1) and a_(2) respectively. (i) F_(1) = F_(2) (ii) F_(1) != F_(2) (iii) a_(1) = a_(2) (iv) a_(1) != a_(2)

The shortest distance between the skew lines bar(r) = bar(a_(1)) + lamda bar(b_(1)) "and" bar(r) = bar(a_(2)) + mu bar(b_(2)) is

If bar(E) and bar(F) are the complementary events of E and F respectively and if 0

If bar (E )and bar(F) are complementary events of events E and F respectively and 0 lt P(F) lt 1 , then :

A_1 A_2 A_3............A_n is a polygon whose all sides are not equal, and angles too are not all equal. theta_1 is theangle between bar(A_i A_j +1) and bar(A_(i+1) A_(i +2)),1 leq i leq n-2.theta_(n-1) is the angle between bar(A_(n-1) A_n) and bar(A_n A_1), while theta_n, is the angle between bar(A_n A_1) and bar(A_1 A_2) then cos(sum_(i=1)^n theta_i) is equal to-

If bar(X)_(1) and bar(X)_(2) are the means of two series such that bar(X)_(1)