limx→1 logxx−1 = [Rpet 1996; MP PET 1996; P.CET 2002]
1
-1
0
limx→1 log[(x−1)+1]x−1 = 1 Aliter : Apply L-Hospital's rule, limx→1logxx−1 = limx→1(1x)1 = 1
The distance between the nearest node and antinode in a stationary wave is
[MP PET 1984; CBSE PMT 1993; AFMC 1996; RPET 2002]