ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 7 Oscillations MCQ`s Test

Sr.#	Question	Answer
1	Which of the following is an example of SHM(in ideal situations)	A. Motion of simple pendulum B. Motion of horizontal spring man system C. Motion of violin string D. All of these
2	When quarter of a cycle is completed, the phase of vibration is:	A. 90° B. 180° C. 45° D. 360°
3	When a body is vibrating, the displacement from mean position	A. Increases with time B. Decreases with time C. Changes with time D. None of these
4	A spring of constant k = 0.4 N m^-1_{is to be extended thorugh 10 cm at a place where g = 10 m sec}^-2. The mass to be suspended should be:	A. 4 gms B. 0.4 gms C. 40 gms D. None of these
5	The S.I unit of frequency is	A. Vibrations s^-2 B. Ms^-1 C. Hertz D. s^-1
6	The restoring force is ______ and opposite tot he applied force within ______	A. Equal, Elastic limit B. Different, The walls of the laboratory C. Different, Elastic limit D. None of these
7	The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.	A. f B. 2 f C. 3 f D. 1/2 f
8	The restoring force is _____ and opposite to the applied force within ______,:	A. Equal, elastic limit B. Different, the walls of the laboratory C. Different, elastic limit D. None of these
9	The restoring force is always directed towards:	A. Rest position B. Equilibrium position C. Mean position D. All of them
10	Which of the following quantity for particle executing SHM is non-zero at mean position	A. Force B. Acceleration C. Velocity D. Displacement