For two gases A and B with molecular masses `M_A` and `M_B` , it is observed that at a certain temperature `T_1` the mean velocity of A is equal to the root mean square velocity of B, thus the mean velocity of A can be made equal to the mean velocity of B if

Options

A. A is at higher temperature than B
B. A is at lower temperature than B
C. Both A and B are raised to a higher temperature
D. Both A and B are placed at lower temperature

Answer

B