AP EAMCET · PHYSICS · Oscillations
A hydrometer executes simple harmonic motion when it is pushed down vertically in a liquid of density . If the mass of hydrometer is and the radius of the hydrometer tube is , then the time period of oscillation is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
If the hydrometer were in equilibrium or floating, its weight will be balanced by the buoyancy force acting on it by the fluid. During its small oscillation, let us locate the hydrometer when it is a vertically downward distance x from its equilibrium position. Here, the net…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- When \(4 \mathrm{C}, \mathrm{Q} C\) and \(1 \mathrm{C}\) electrical charges are placed along a straight line of length ' \(l\) ' at 0 , \(\frac{l}{2}\) and \(l\) respectively. The respective values of \(\mathrm{Q}\) so that the net force on \(4 \mathrm{C}\) is zero and
\(1 \mathrm{C}\) is zero separately are (in coulomb)AP EAMCET 2017 Easy - A coil of inductive reactance \(\frac{1}{\sqrt{3}} \Omega\) and a resistance \(1 \Omega\) are connected in series to a \(200 \mathrm{~V}, 50 \mathrm{~Hz}\) ac source. The time lag between voltage and current isAP EAMCET 2025 Medium
- A glass capillary tube of inner diameter 0.28 \(\mathrm{mm}\) is lowered vertically into water in a vessel. The pressure to be applied on the water in the capillary tube so that water level in the tube is same as that in the vessel (in \(\mathrm{N} / \mathrm{m}^2\) ) is
Surface tension of water \(=0.07 \mathrm{~N} / \mathrm{m}\)
Atmospheric pressure \(=10^5 \mathrm{~N} / \mathrm{m}^2\)AP EAMCET 2002 Hard - A wooden block floating in a bucket of water has \((4 / 5)\) th of its volume submerged. When certain amount of an oil is poured into the bucket, it is found that the block is just under the oil surface, with half of its volume under water and the other half in oil. The density of oil used relative to that of water isAP EAMCET 2021 Hard
- Two slabs \(A\) and \(B\) of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of \(A\) and \(B\) are \(k_1\) and \(k_2\) respectively. A steady temperature difference of \(12^{\circ} \mathrm{C}\) is maintained across the composite slab. If \(k_1=\frac{k_2}{2}\), the temperature difference across slab \(A\) isAP EAMCET 2011 Easy
- Twelve cells, each having emf \(E\) volts are connected in series and are kept in a closed box. Some of these cells are wrongly connected with positive and negative terminals reversed. This 12 cell battery is connected in series with an ammeter, an external resistance \(R\) ohms and a two-cell battery (two cells of the same type used earlier, connected perfectly in series). The current in the circuit when the 12-cell battery and 2-cell battery aid each other is 3A and is \(2 \mathrm{~A}\) when they oppose each other. Then, the number of cells in 12-cell battery that are connected wrongly is :AP EAMCET 2006 Hard
More PYQs from AP EAMCET
- A water barrel having water upto a depth \(d\) is placed on a table of height \(h\). A small hole is made on the wall of the barrel at its bottom. If the stream of water coming out of the hole falls on the ground at a horizontal distance \(R\) from the barrel, then the value of \(d\) isAP EAMCET 2002 Medium
- Which of the following is an example for chain-growth polymer?AP EAMCET 2020 Easy
- Identify the correct statements from the following
I) Sulphur sol is an example for multi molecular colloid.
II) Starch sol is an example for associated colloid.
III) Artificial rubber is an example for macromolecular colloid.AP EAMCET 2025 Medium - Which one of the following structures represents the neoprene rubber?AP EAMCET 2018 Easy
- At \(T(K)\), the equilibrium constant for the reaction \(\mathrm{H}_2(\mathrm{~g})+\mathrm{Br}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HBr}(\mathrm{g})\) is \(1.6 \times 10^5\). If 10 bar ' of HBr is introduced into a sealed vessel at \(\mathrm{T}(\mathrm{K})\), the equilibrium pressure of HBr (in bar) is approximatelyAP EAMCET 2024 Medium
- If \(\left(l_1, m_1, n_1\right)\) and \(\left(l_2, m_2, n_2\right)\) are the direction cosines of two lines satisfying the relations \(l^2+m n-6 n^2=0\) and \(2 l-m+3 n=0\), then \(\left|l_1 l_2\right|+\left|m_1 m_2\right|=\)AP EAMCET 2022 Medium