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Post Utme Physics Past Questions and Answers

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Post Utme Physics Past Questions

Question 1066:


If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called

A. Doppler effect
B. Resonance
C. Refraction
D. Diffraction of sound


Question 1067:


The period of vibration of a wave of wavelength 30m moving at a speed of 300m/s

A. 10s
B. 270s
C. 330s
D. 900s


Question 1068:


A 10.0kg mass is dragged along a horizontal table by a 60N force. The force is inclined at angle 30 to the horizontal, and the coefficient of dynamic friction between the mass and the table is 0.15. Calculate the acceleration of the mass.
[Take g=10m/s2 ]

A. 3.7m/s2
B. 4.5m/s2
C. 5.0m/s2
D. 6.7m/s2


Question 1069:


A body of mass Mkg is located 0.5m from a body of mass 2Mkg. At the same time, it is 0.75m from a third body of mass 3Mkg and 0.9m from a fourth body of mass 5Mkg. Which of the three bodies exerts the least gravitational force of attraction on the body of mass Mkg ?

A. 2M kg
B. 3Mkg
C. 5Mkg
D. All forces equal


Question 1070:


Which of the following statements is true of a body moving with simple harmonic oscillation about its equilibrium position?

A. The velocity is maximum when the body is passing through the equilibrium position
B. The velocity is minimum when the body is passing through the equilibrium position.
C. Acceleration is maximum when body is passing through the equilibrium position
D. Acceleration is constant throughout the period of motion






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