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UP TGT Mathematics Integration Test Series - Part 3

Two spheres of radii r1 and r2 touch internally if the distance 'd' between their centers is:

Type: MCQ • Marks: 1
Two spheres of radii r1 and r2 touch internally if the distance 'd' between their centers is:
Options
A. d = r1 + r2
B. d = |r1 - r2|
C. d = r1 * r2
D. d = 0
Explanation
For two spheres to touch internally, distance between centers equals the magnitude of the difference of their radii.
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