Answer:
6.4924249 × 10^-23 g you need to solve it
The answer to number 1 is D
Solution :
Let, intensity at distance 3 m from the acoustic source is
.
We need to find the distance d where the intensity is
.
Now, we know intensity is inversely proportional to square of distance between the source.

Therefore, intensity will be halved at a distance of
.
Out of the statements given, the correct statement about ribosomes that is correct is that Prokaryotic ribosomes are smaller than eukaryotic ribosomes. The correct answer is B.