weight of P displaced is greater than that of Q
weight of P displaced is less than that of Q
volume of P displaced is greater than that of Q
volume of P displaced is less than that of Q
Correct answer is A
R.d \(\alpha\) weight of liquid displaced
\(\frac{\text {R.d of P}}{\text {R.d of Q}}\) = \(\frac{\text{weight of p displaced}}{\text{weight of Q displaced}}\)
\(\frac{2}{1.5}\) = \(\frac{\text {weight of p displaced}}{\text {weight of Q displaced}}\)
1.25
1.10
0.90
0.80
Correct answer is D
Masses of kerosene = 24.8 - 15.2
= 9.6
mass of H2O = 27.2 - 15.2
= 12
R.d = \(\frac{9.6}{12}\) = 0.8
i, iii only
i, ii, iii only
i, iii, and iv only
i, ii, iii and iv
Correct answer is A
No explanation has been provided for this answer.
25.0cm
22.5cm
20.0cm
15.0cm
Correct answer is B
\(\frac{15}{30 - L}\) = \(\frac{10}{5}\)
L = 22.5cm
Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy bar is 21cm
\(\frac{1}{140}\)\(\pi\)
14\(\pi\)
70\(\pi\)
140\(\pi\)
Correct answer is D
V.R = \(\frac{2\pi L}{p}\)
= \(\frac{2 \times \pi \times 2}{0.3}\)
V.R = 140\(\pi\)