Of two cubes of sides 3 centimetres, orie is split into two equal triangular prisms and the pieces are joined to the other cube to make a solid as shown in the figure. What is the surface area of the solid.
'(##VPU_HSS_MAT_IX_C11_E07_018_Q01##)'

A point charge +10 muC is a distance 5cm directly above the centre of a square of side 10cm as shown in the figure. What is the magnitude of the electric flux through the square? [Hint: Think of the square as one face of cube with edge 10cm]. '(##VPU_HSS_PHY_XII_CO1_E02_018_Q01##)'