This is dependent on how many shells/layers/energy levels the element has. The first shell can only hold 2 electrons however every shell beyond that can hold 8 electrons
A coil of insulated wire around an iron core
Answer:
its an antique physics apparatus for demonstrating acoustic standing waves in a tube.
Hello,
The answer is option C "<span>thermosphere".</span><span>
Reason:
The troposphere is the layer of the air that the harmful heat rays (from the sun is mostly absorbed). The thermosphere is directly above the exosphere which is the sphere with the thin layer of the sphere therefore the answer should be option C.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>
hey guy
the vibration per second is frequency
then for 20 vibration time taken is 100 second
in 1 second 20/100 vibration took place
it means 0.2 is frequency
for time period , we have
t=1/f
=1/0.2
=5