1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible.

When pressed slightly and released the mass executes a simple harmonic motion. The spring constant is 200 N/m. What should be the minimum amplitude of the motion so that the mass gets detached from the pan (take g = 10 m/s2).

AIPMT 2007 Physics - Oscillations Question 41 English
A
10.0 cm
B
any value less than 12.0 cm
C
4.0 cm
D
8.0 cm
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A rectangular block of mass m and area of cross-section A floats in a liquid of density $$\rho $$. If it is given a small vertical displacement from equilibrium it undergoes with a time period T, then
A
$$T \propto {1 \over {\sqrt m }}$$
B
$$T \propto \sqrt \rho $$
C
$$T \propto {1 \over {\sqrt A }}$$
D
$$T \propto {1 \over \rho }$$
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The circular motion of a particle with constant speed is
A
periodic but not simple harmonic
B
simple harmonic but not periodic
C
period and simple harmonic
D
neither periodic not simple harmonic.
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Two springs of spring constants k1 and k2 are joined in series. The effective spring constant of the combination is given by
A
$$\sqrt {{k_1}{k_2}} $$
B
(k1 + k2)/2
C
k1 + k2
D
k1k2/(k1 + k2)

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