NEET2025Physics-damped oscillations
NEET 2025 Physics damped oscillations MCQ Question
Type: MCQ-conceptual-Medium-Class 11
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) and average amplitude A(t) of the system change with time t. Which one of the following options schematically depicts these changes correctly?
A
ω(t) increases, A(t) increases
B
ω(t) increases, A(t) decreases
C
ω(t) decreases, A(t) increases
D
ω(t) decreases, A(t) decreases
Correct Answer
Option B
Detailed Explanation
As sand leaks out, the mass of the system decreases, leading to an increase in frequency (ω(t)). The amplitude (A(t)) decreases due to energy loss from the system.
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