Question

c) If two sounds have same frequency, same amplitude
but different sources, they will still have the same
quality.
[ ]
d) The pitch of sound depends on the amplitude of
vibrations,
[ ]
e) Frictional force is a non-contact force.
[ 1
f) Pressure exerted by a liquid is the same in all directions
at a particular depth.
[ ]
g) Spirogyra is a filamentous algae that grows in ponds
and ditches.
[ ]
h) Painting, oiling, greasing and galvanizing can prevent
corrosion of different metals.
[ ]
i) Sound will travel slower through an iron bar than an
atmosphere of nitrogen.
[ ]
j) Frictional force acts in same direction as the motion of
the object.
[ ]​

Answer 1

Answer:

i think j is the right answer