Properties Of Solids And Liquids Question 229
Question: At what speed the velocity head of a stream of water be equal to 40 cm of Hg
Options:
A) 282.8 cm/sec
B) 432.6 cm/sec
C) 632.6 cm/sec
D)832.6 cm/sec
Show Answer
Answer:
Correct Answer: A
Solution:
$ \frac{v^{2}}{2g}=h $ therefore $ v=\sqrt{2gh} $
$ =\sqrt{2\times 10^{3}\times 40} $ =$ 2\sqrt{2}\times 10^{2} $ =$ 282.8\ cm/s $
