Benzene hexachloride (BHC) is used as
[MP PMT 1994; KCET 1999]
Dye
Antimalerial drug
Antibiotic
Insecticide
[MP PMT 1994, 95; DCE 1999, 2001; AIIMS 2001]
When a semiconductor is heated, its resistance
[KCET 1992; MP PMT 1994; MP PET 1992, 2002;RPMT 2001; DCE 2001]
In stationary waves all particles between two nodes pass through the mean
position