MCQ
Given below are two statements :
Statement - I : The hot water flows faster than cold water.
Statement-II : Soap water has higher surface tension as compared to fresh water.
In the light above statements, choose the correct answer from the options given below
  • A
    Statement-I is false but Statement II is true
  • Statement-I is true but Statement II is false
  • C
    Both Statement-I and Statement-II are true
  • D
    Both Statement-I and Statement-II are false

Answer

Correct option: B.
Statement-I is true but Statement II is false
(B)
Hot water is less viscous then cold water.
Surfactant reduces surface tension.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Two batteries $V_1$ and $V_2$ are connected to three resistors as shown below. If $V_1=2 \,V$ and $V_2=0 \,V$, then the current $I=3 \,mA$. If $V_1=0 \,V$ and $V_2=4 \,V$, then the current $I=4 \,mA$. Now, if $V_1=10 \,V$ and $V_2=10 \,V$, then the current $I$ will be ............ $\,mA$
The election field in a region is given by $\vec E = (Ax + B)\hat i$ where $E$ is in $N\,C^{-1}$ and $x$ in meters. The values of constants are $A = 20\, SI\, unit$ and  $B = 10\, SI\, unit$. If the potential at $x =1$ is $V_1$ and that at $x = -5$ is $V_2$ then $V_1 -V_2$ is.....$V$
A capacitor of capacitance $100\  \mu \mathrm{F}$ is charged to a potential of $12  \mathrm{~V}$ and connected to a $6.4 \ \mathrm{mH}$ inductor to produce oscillations. The maximum current in the circuit would be :
The image formed by a convex mirror of focal length $30cm$ is a quarter of the size of the object. The distance of the object from the mirror is......$cm$
A flexible circular loop $20\ cm$ in diameter lies in a magnetic field of magnitude $B = 1$ Tesla, directed into the plane of page as shown. The loop is pulled at the points indicated by the arrows forming a loop of zero area in $0.314\ sec$ . The average emf induced in the loop is.....$V$
A conducting sphere of radius a has charge $Q$ on it. It is enclosed by a neutral conducting concentric spherical shell having inner radius $2a$ and outer radius $3a.$ Find electrostatic energy of system.
A capacitor of $2\,\, \mu F$ is charged as shown in the diagram. When the switch $S$ is turned to position $2,$ the percentage of its stored energy dissipated is ......$\%$ 
At a certain location in Africa, a compass points $12^o$ West of the geographic North. The North tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points $60^o$ above the horizontal. The horizontal component of the earth's field is measured to be $0.16\, G$. The magnitude of the earth's field at the location will be
For a specific wavelength $670 \; nm$ of light coming from a galaxy moving with velocity $v$, the observed wavelength is $670.7 \; nm$. The value of $v$ is ............
A $10\,\mu F$ capacitor and a $20\,\mu F$ capacitor are connected in series across a $200\;V$ supply line. The charged capacitors are then disconnected from the line and reconnected with their positive plates together and negative plates together and no external voltage is applied. What is the potential difference across each capacitor