MCQ
Select wrong statement about pressure ..........
  • A
    Pressure is a scalar quantity
  • B
    Pressure is always compressive in nature
  • C
    Pressure at a point is same in all directions
  • None of these

Answer

Correct option: D.
None of these
d
(d)

Pressure is scalar as it is not added vectorially. Pressure is compressive in nature, it is same in all the directions at a point.

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 bulbs of identical volumes connected by a small capillary are initially filled with an ideal gas at temperature $T$. Bulb $2$ is heated to maintain a temperature $2 T$, while bulb $1$ remains at temperature $T$. Assume throughout that the heat conduction by the capillary is negligible. Then, the ratio of final mass of the gas in bulb $2$ to the initial mass of the gas in the same bulb is close to
If a vector $2\hat i + 3\hat j + 8\hat k$ is perpendicular to the vector $4\hat j - 4\hat i + \alpha \hat k$. Then the value of $\alpha $ is
The radius ( $\mathrm{r})$, length $(l)$ and resistance $(\mathrm{R})$ of a metal wire was measured in the laboratory as

$\mathrm{r}=(0.35 \pm 0.05) \mathrm{cm}$

$\mathrm{R}=(100 \pm 10) \mathrm{ohm}$

$l=(15 \pm 0.2) \mathrm{cm}$

The percentage error in resistivity of the material of the wire is :

According to law of equipartition of energy the molar specific heat of a diatomic gas at constant volume where the molecule has one additional vibrational mode is :-
The average thermal energy for a mono$-$atomic gas is : $\left( k _{ B }\right.$ is Boltzmann constant and $T ,$ absolute $e$. temperature)
A marble block of mass $2\, kg$ lying on ice when given a velocity of $6\, m/s$ is stopped by friction in $10s$. Then the coefficient of friction is-
Two rods of same length and material transfer a given amount of heat in $12$ seconds, when they are joined end to end. But when they are joined lengthwise, then they will transfer same heat in same conditions in ....... $\sec$
For which of the following gases the value of root mean square velocity at the same temperature will be minimum?
Figure shows a body of mass m moving with a uniform speed $v$ along a circle of radius $r$. The change in velocity in going from $A$ to $B$ is
A ball of mass $'m'$ moving with a speed $'u'$ under goes a head-on elastic collision with a ball of mass $(nm)$  initially at rest. The fraction of the incident energy transferred to the heaveir ball is