MCQ
A $metre$ scale is suspended vertically from a horizontal axis passing through one end of it. Its time period would be ....... $\sec$
- ✓$1.64$
- B$2$
- C$2.5$
- D$3.2$
✓
Answer
Correct option: A.
$1.64$
a
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The velocity-displacement graph of a particle is shown in the figure.
The acceleration-displacement graph of the same particle is represented by :
The ratio of the diameters of two metallic rods of the same material is $2 : 1$ and their lengths are in the ratio $1 : 4$ . If the temperature difference between their ends are equal, the rate of flow of heat in them will be in the ratio
→A machine gun fires a bullet of mass $40\ gm$ with a velocity $1200\ m/ s.$ The man holding it can exert a maximum force of $144N$ on the gun. How many bullets can he fire per second at the most?
→A sphere pure rolls on a rough inclined plane with initial velocity $2.8 \,m / s$. Find the maximum distance on the inclined plane. (in $m$)
→Liquid cools from $50^oC$ to $45^oC$ in $5\ minutes$ and from $45^oC$ to $41.5^oC$ in the next $5\ minutes$.The temperature of the surrounding is ......... $^oC$
→The escape velocity of a rocket launched from the surface of the earth
A ball is dropped from the top of a $100\; m$ high tower on a planet. In the last $\frac{1}{2}\;s $ before hitting the ground, it covers a distance of $19\; \mathrm{m}$. Acceleration due to gravity (in $\mathrm{ms}^{-2}$ ) near the surface on that planet is
→The velocity $v$ (in $cm/\sec $) of a particle is given in terms of time $t$ (in sec) by the relation $v = at + \frac{b}{{t + c}}$ ; the dimensions of $a,\,b$ and $c$ are
→Airplanes $A$ and $B$ are flying with constant velocity in the same vertical plane at angles $30^{\circ}$ and $60^{\circ}$ with respect to the horizontal respectively as shown in figure . The speed of $A$ is $100 \sqrt{3} ms ^{-1}$. At time $t=0$, an observer in A finds $B$ at a distance of $500 \ m$. This observer sees $B$ moving with a constant velocity perpendicular to the line of motion of $A$. If at $t = t _0$, $A$ just escapes being hit by $B , t _0$ in seconds is:
→A car of mass $500\, kg$ is driven with acceleration $1\, m/s^2$ along straight level road against constant external resistance of $1000\, N$. When the velocity is $5\, m/s$ the rate at which the engine is working is .............. $\mathrm{kW}$
→