Q

At 25°C: A. Sound speed in steel is 5960 m/s. B. Sound speed in nickel is 6240 m/s. Which is correct according to the source table?

RRB Group-D 22/10/2018 (Shift-I) 2018
✓ Answer: A Only A
The table lists steel at 5960 m/s and nickel at 6040 m/s, so only A matches.
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