Body floats in fluid when its …………………
Displaces its own volume of the liquid (fluid)
Displaces its own weight of the fluid
Displace its own density of the fluid
Is no longer subjected to gravity
Correct answer is B
Note:The principle of floatation states that a floating body displaces its own weight of the fluid or which its float.
For object to sink weight of the object (W) > upthrust of the fluid (v) i.e. w > u
(i.e. weight of the body (or object) mass of the fluid)
There is an explanation video available below.
39.2N
19.6N
14.2N
7.4N
5.1N
Correct answer is B
f \(\alpha\) \(\sqrt{T}\)
\(\frac{f_1}{f_2} = \sqrt{\frac{T_1}{T_2}}\)
\(\frac{250}{350} = \sqrt{\frac{10}{T_2}}\)
\(\frac{5}{7} = \sqrt{\frac{10}{T_2}}\)
\(\frac{25}{49} = \frac{10}{T_2}\)
T2 = \(\frac{49 \times 10}{25} = 19.6\)
f/4
f/2
f
2f
4f
Correct answer is D
No explanation has been provided for this answer.
0.5Jg-1
2.5Jg-1
15.0Jg-1
450.0Jg-1
150Jg-1
Correct answer is B
Pt = mL
L = \(\frac{pt}{m} = \frac{90 \times 5}{180}\)
= 2.5
4800J
1200J
480J
202J
80J
Correct answer is C
H = mC\(\theta\) = 200 x 0.4 x 6
= 480J