A measurement that will always give the same answer.
Answer:
Every empty room has echo, it's material does that. The object in the room take away that echo.
Explanation:
Answer:
The electric field between the plates is 120 V/m.
(c) is correct option.
Explanation:
Given that,
Potential difference = 12 volt
Distance = 10 cm = 0.1 m
We need to calculate the electric field between the plates
Using formula of electric field

Where, V = potential difference
d = distance between the plates
Put the formula


Hence, The electric field between the plates is 120 V/m.
The pressure of the gas inside the jar decreases, because you have
reduced the temperature of a fixed mass and fixed volume of gas.
While the pressure inside the jar decreases, the pressure outside the
jar doesn't change. So the pressure outside becomes greater than the
pressure inside, and that's why you may see the lid of the jar sag inward,
pushed by the greater pressure on the outside.