Correct Answer - Option 3 : 512
Calculation:
Number of spheres of radius 1 cm = (volume of a sphere of radius 8 cm)/volume of one sphere of radius 1 cm)
Number of spheres of radius 1 cm = (4/3 × π × 83)/(4/3 × π × 13) = 83
Number of spheres of radius 1 cm = 512
Total 512 spheres can be made from a sphere of radius 8 cm.