Have you ever heard this phrase, "What weighs more, a ton of feathers, or a ton of lead?" The answer is, they weigh the same, however the ton of feathers takes up more space than the ton of lead. So to answer your question, the answer is yes, and no. Depending on what the substance is will determine your answer. I hope that i helped.
Answer:
T' = 2T
Explanation:
The time period of a simple pendulum is given by the relation as follows :

l is length of the pendulum
g is acceleration due to gravity
If the length is increased four time, new length is l' = 4l
So,
New time period is :

So, the new time period is 2 times of the initial time period.
Answer:
Explanation:
Electric field E = 4 x 10⁷ V / m
Dielectric constant k = 24
capacitance of capacitor
C = kε₀ A / d
d = plate separation
A = plate area
C = .89 x 10⁻⁶
V / d = electric field
for minimum d , electric field will be maximum
V / d = 4 x 10⁷
1930 / d = 4 x 10⁷
d = 1930 / 4 x 10⁷
d = 482.5 x 10⁻⁷ m
= 48.25 x 10⁻⁶ m
C = kε₀ A / d
.89 x 10⁻⁶ = 24 ε₀ A / d
A = .89 x 10⁻⁶ X d / 24 ε₀
A = .89 x 10⁻⁶ X 48.25 x 10⁻⁶ / 24 x 8.85 x 10⁻¹²
= 42.9 / 212.4
= .2019 m²