In the string theory that could successfully unite gravity and quantum mechanics, the universe must have
A) four dimensions (three spatial and one temporal).
B) six dimensions (three spatial and three temporal).
C) seven dimensions (six spatial and one temporal).
D) nine dimensions (eight spatial and one temporal).
E) eleven dimensions (10 spatial and 1 temporal).

Question

Quizplus · Accepted Answer

String theory, particularly M-theory, suggests that the universe has 11 dimensions: 10 spatial and 1 temporal. This framework helps in unifying gravity with quantum mechanics.

In the String Theory That Could Successfully Unite Gravity and Quantum