AIPMT 2011 Solved Papers
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Physics 2011
Q. 31. A particle of mass m is released from rest and follows a parabolic path as shown. Assuming that the displacement of the mass from the origin is small, which graph correctly depicts the position of the particle as a function of time?
Sol .
Motion given here is SHM starting from rest.
Answer : (2)
Q. 32. Two waves are represented by the equations
where x is in meter and t in s. The phase difference between them is
(1) 0.57 radian (2) 1.0 radian
(3) 1.25 radian (4) 1.57 radian
Sol.
Answer : (2)
Q. 33. Out of the following functions representing motion of a particle which represents SHM?
(1) Only (A) and (B) (2) Only (A)
(3) Only (D) does not represent SHM (4) Only (A) and (C)
Sol.
Answer : (4)
Q. 34. Sound waves travel at 350 m/s through a warm air and at 3500 m/s through brass. The wavelength of a 700 Hz acoustic wave as it enters brass from warm air
(1) Decreases by a factor 20 (2) Decreases by a factor 10
(3) Increases by a factor 20 (4) Increases by a factor 10
Sol.
Answer : (4)
Q. 35. The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is
(1) Infrared, microwave, ultraviolet, gamma rays
(2) Microwave, infrared, ultraviolet, gamma rays
(3) Gamma rays, ultraviolet, infrared, microwaves
(4) Microwaves, gamma rays, infrared, ultraviolet
Sol.
Fact based question
Answer : (2)