1.

(A): Escape velocity from the surface of a black hole is greater than speed of light (R) : Light cannot escape from black hole

Answer»

Both .A. and .R. are TRUE and .R. is the CORRECT EXPLANATION of .A.
Both .A. and .R. are true and .R. is not the correct explanation of .A.
.A. is true and .R. is FALSE
.A. is false and .R. is true

Answer :A


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