Well since it is an upward force.. its b or c.. I think its b..
Answer:
The answer to your question is the Photoelectric effect.
Explanation:
Answer:
- Gap between the plates
- No, practically not achievable
Solution:
As per the question:
Capacitance, C = 1 F
Area of the plate of the capacitor, A =
Now,
To calculate the distance, D between the plates of a parallel plate capacitor:
Thus
where
= permittivity of free space
Now,
This distance much smaller and is practically not possible