Most probable velocity, \(\begin{array}{l}U_{RMS}=\sqrt{\frac{3RT}{M}}\end{array} \) Average velocity, \(\begin{array}{l}U_{avg}=\sqrt{\frac{8RT}{\pi M}}\end{array} \) Root Mean Square velocity, \(\begin{array}{l}U_{MP}= \sqrt{\frac{2RT}{M}}\end{array} \) Therefore, \(\begin{array}{l}U_{MP}: U_{avg}:... View Article
The most precise test of liquidity is ‘Absolute liquid ratio’. Therefore, the correct option is (c)
Solution: A jet plane is travelling towards west V = 1800 km/h V = (1800 x 1000)/ (60 x 60)... View Article
Given 3x – 2y = 5 Let us put x = 3 and y = 2 in LHS We get,... View Article
Answer: (2) 4πε0 Q x 1022 Vm-1 Here, \(\begin{array}{l}V = \frac{1}{4\pi \epsilon _{0}}\times \frac{Q}{r}=Q\times 10^{11}volts\end{array} \) Hence, \(\begin{array}{l}\frac{1}{r}=4\pi \epsilon _{0}\times 10^{11}\end{array} \) E... View Article
A tangent of slope 2 to the ellipse \(\begin{array}{l}\frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}}= 1\end{array} \) is \(\begin{array}{l}y = 2x\pm \sqrt{4a^{2}+b^{2}}\end{array} \) —– (1) This... View Article
Consider the required number = X (16/100) x X = 72 X = (72 x 100)/16 We get, X =... View Article
Wanda used to wear an old blue faded yet a clean dress to school every day. When Maddie saw the... View Article
In 1999, the world population reached 6 billion. Therefore, the correct option is (c)
The hybridization of chlorine atom in CIF3 molecule is sp3d. Therefore the correct option is (d) Learn more: Chlorine Trifluoride
The SI unit of conductivity is siemens per meter (S/m). Hence the correct option is (a) i.e Sm-1
The feminine form of lad is ‘lass’.
Moving Coil Galvanometer Principle A current-carrying coil when placed in an external magnetic field experiences magnetic torque. The angle through... View Article
Audible sound 1. The sounds of frequency which are audible to the human ear is known as audible sound 2.... View Article
Let us consider f(x) = 1/√x y = 1/u and u = x1/2 Since √x = x 1/2 On simplification,... View Article
Ozone is actually not a very stable compound in normal conditions. It decomposes readily on heating to form a molecule... View Article
The specific gravities of concrete and sawdust are ρ1 and ρ2 respectively Given ρ1 = 2.4 and ρ2 = 0.3... View Article
(a) 24 J (b) 33 J (c) 83 J (d) 45 J Work done is given by, \(\begin{array}{l}W = \int... View Article
The correct answer is (b) H2O2 Solution In H2O2, the electronegativity difference between O and H atoms is 1.4, O –... View Article
The human muscular system includes more than 600 muscles, which makes up about 40 to 50 per cent of the... View Article
