[" 1.The Bohr radius is given by "a_(0)=(varepsilon_(0)h^(2))/(pi me^(2))*" Verify that the "],[RHS" has dimensions of length."]

The bohr radius is given by a_(0) = (epsilon_(0)h^(2))/(pi m e^(2)) verify that the RHS has dimesions of length

The bohr radius is given by a_(0) = (epsilon_(0)h^(2))/(pi m e^(2)) verify that the RHS has dimesions of length

The bohrradius is given by a_(0) = (epsilon_(0)h^(2))/(pi m e^(2)) verify that the KHS has dimesions of length

h/(2pi) is the dimension of

h/(2pi) is the dimension of

[" 11.For the situation shown in the figure (assume "r>>" length of dipole) select the "],[" correct statement(s): "],[[" A) Force acting on the dipole is zero "],[" B) Force acting on the dipole is approximately "(pQ)/(4 pi varepsilon_(0)r^(3))],[" C) Torque acting on the dipole is approximately "(pQ)/(4 pi varepsilon_(0)r^(2))" in clockwise direction."],[" D) Torque acting on the dipole is approximately "(pQ)/(2 pi varepsilon_(0)r^(2))" in clockwise direction."]]

The expression (me^(4))/(8epsilon_(0)^(2)h_(c )^(3)) has the dimensions (m = mass, e = electric charge, in_(0)= permittivity, h = planck's constant and c = velocity of light)