Physics · 2026
JEE Main · 21 January 2026, Shift 1 · Q34
A uniform rod of mass m and length l suspended by means of two identical inextensible light strings as shown in figure. Tension in one string…
A uniform rod of mass $\displaystyle m$ and length $\displaystyle l$ suspended by means of two identical inextensible light strings as shown in figure. Tension in one string immediately after the other string is cut, is $\displaystyle \_\_\_\_$. ( $\displaystyle g$ acceleration due to gravity)
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle m g / 4$
More from Rotational Motion
- A solid sphere (A) of mass 5 m and a spherical shell (B) of mass m, both having same radius, are placed on a rough surface. When a force of same…2026
- Moment of inertia about an axis A B for a rod of mass 40 kg and length 3 m is same as that of a solid sphere of mass of 10 kg and radius R about an…2026
- A solid sphere of radius 4 cm and mass 5 kg is rotating (rotation axis is passing through the centre of the sphere) with an angular velocity of 1200…2026
- A solid sphere of mass M and radius R is divided into two unequal parts. The smaller part having mass M / 8 is converted into a sphere of radius r…2026
- An object of uniform density rolls up the curved path with the initial velocity v_o as shown in the figure. If the maximum height attained by an…2026
- A wheel initially at rest is subjected to a uniform angular acceleration about its axis. In the first 2 s it rotates through an angle θ_1 and in the…2026
- The position of an object having mass 0.1 kg as a function of time t is given as r=(10 t^2 i+5 t^3 j) m. At t=1 s, which of the following statements…2026
- A solid cylinder having radius R and length L is slipping on a rough horizontal plane. At time t=0 the cylinder has a translational velocity v_o=49 m…2026
JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.