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NEET 2025
Exam
NEET
Year
2025
Subject
Physics
Chapter
Oscillations

NEET 2025 · Physics · Oscillations

In an oscillating spring mass system, a spring is connected to a...

In an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sand leaks slowly out of the box vertically so that the average frequency ω(t)\omega(t) and average amplitude A(t)A(t) of the system change with time tt. Which one of the following options schematically depicts these changes correctly?In an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sandIn an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sandIn an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sandIn an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sandIn an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sand

Options

  1. AThe structures that help some bacteria to attach to rocks and/or host tissue are:
  2. BThe structures that help some bacteria to attach to rocks and/or host tissue are:
  3. CThe structures that help some bacteria to attach to rocks and/or host tissue are:
  4. DThe structures that help some bacteria to attach to rocks and/or host tissue are:

Correct answer

B. The structures that help some bacteria to attach to rocks and/or host tissue are:

Step-by-step solution

ω=km∵m↓⇒ω↑\begin{aligned} & \omega=\sqrt{\frac{\mathrm{k}}{\mathrm{m}}} \\ & \because \mathrm{m} \downarrow \Rightarrow \omega \uparrow\end{aligned} In an oscillating spring mass system, a spring is connected to a box filled with sand. As the box oscillates, sand
∵E=12kA2\because \mathrm{E}=\frac{1}{2} \mathrm{kA}^2 The part of sand being removed takes away a part of energy. ∴\therefore Total energy decreases. ∴\therefore Energy of SHM decreases As a result Amplitude also decreases.
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