Oscillations (SHM) · JEE Main previous year questions

2002 5 questions

1. Q1042002 · 27 Apr 2002 · Shift 1

   In a simple harmonic oscillator, at the mean position

   1. A.kinetic energy is minimum, potential energy is maximum
   2. B.both kinetic and potential energies are maximum
   3. C.kinetic energy is maximum, potential energy is minimum
   4. D.both kinetic and potential energies are minimum.
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   Answer: C

2. Q1052002 · 27 Apr 2002 · Shift 1

   A child swinging on a swing in sitting position, stands up, then the time period of the swing will

   1. A.increase
   2. B.decrease
   3. C.remains same
   4. D.increases of the child is long and decreases if the child is short
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   Answer: B

3. Q1062002 · 27 Apr 2002 · Shift 1

   If a spring has time period $T$, and is cut into $n$ equal parts, then the time period of each part will be

   1. A.$T\sqrt{n}$
   2. B.$T/\sqrt{n}$
   3. C.$nT$
   4. D.$T$
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   Answer: B

4. Q1192002 · 27 Apr 2002 · Shift 1

   If a current is passed through a spring then the spring will

   1. A.expand
   2. B.compress
   3. C.remain same
   4. D.none of these
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   Answer: B

5. Q1212002 · 27 Apr 2002 · Shift 1

   The mass of product liberated on anode in an electrochemical cell depends on (where $t$ is the time period for which the current is passed).

   1. A.$(It{)}^{1/2}$
   2. B.$It$
   3. C.$I/t$
   4. D.$I^{2}t$
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   Answer: B