The wavelength would be 2.980044314115. Reduced it would be 2.980 or just 2.98.
Answer:
If I remembered correctly the answer would be Ne and Ar(Neon and Argon
Double
Explanation:
Since the period T of a pendulum is given by

By increasing the length of the pendulum by 4, the period becomes

You can see that the period doubles when we increase the length by a factor of 4.
Answer:
∆L=aL∆T
Explanation:
that's the answer for your Question