New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Properties of Matter question

2025 · 2 Apr · Shift 2 · Q72

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Main
Physics
Properties of Matter
2025 · 2 Apr · Shift 2 · Q72

Properties of Matter question

2025 · 2 Apr · Shift 2 · Q72

JEE MainPhysicsProperties of MatterNumerical+4 / −1

The length of a light string is 1.4 m when the tension on it is 5 N . If the tension increases to 7 N , the length of the string is 1.56 m . The original length of the string is

\underline{\hspace{2cm}}

m.

Numerical answer

More from Properties of Matter

Consider a completely full cylindrical water tank of height 1.6 m and of cross-sectional area $0.5 m^{2}$ . It has a small hole in its side at a height 90 cm from the bottom. Assume, the crosssectional area of the hole to be…2025 · MCQ
Two cylindrical vessels of equal cross sectional area of $2 m^{2}$ contain water upto heights 10 m and 6 m , respectively. If the vessels are connected at their bottom then the work done by the force of gravity is (Density of water…2025 · MCQ
A solid steel ball of diameter 3.6 mm acquired terminal velocity $2.45 \times 1 0^{- 2} m / s$ while falling under gravity through an oil of density $925 kg m^{- 3}$ . Take density of steel as $7825 kg m^{- 3}$ …2025 · MCQ
The excess pressure inside a soap bubble A in air is half the excess pressure inside another soap bubble B in air. If the volume of the bubble A is $n$ times the volume of the bubble $B$ , then, the value of $n$ is…2025 · Numerical
Two liquids $A$ and $B$ have $θ_{A}$ and $θ_{B}$ as contact angles in a capillary tube. If $K = cos θ_{A} / cos θ_{B}$ , then identify the correct statement:2025 · MCQ
Two slabs with square cross section of different materials $(l)$ with equal sides $(l)$ and thickness $d_{1}$ and $d_{2}$ such that $d_{2} = 2 d_{1}$ and $l > d_{2}$ . Considering lower edges of these slabs are fixed to the floor, we apply equal…2025 · Numerical
A cylindrical rod of length 1 m and radius 4 cm is mounted vertically. It is subjected to a shear force of $1 0^{5} N$ at the top. Considering infinitesimally small displacement in the upper edge, the angular displacement $θ$ …2025 · MCQ
Two wires A and B are made of same material having ratio of lengths $\frac{L _{A}}{L _{B}} = \frac{1}{3}$ and their diameters ratio $\frac{d _{A}}{d _{B}} = 2$ . If both the wires are stretched using same force, what would be the ratio of their respective…2025 · MCQ