ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

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

Sr.#	Question	Answer
1	The number of vibration in two seconds can be expressed as ______ of frequency of vibration is f:	A. f B. 2 f C. 3 f D. 1/2 f
2	The time period of a simple pendulum is independent of its:	A. Length B. Mass C. Value of g D. Both A and B
3	To and from motion of a body about its mean position is known as:	A. Translatory motion B. Vibratory motion C. Rotatory motion D. None of these
4	The S.I unit of frequency is	A. Vibrations s^-2 B. Ms^-1 C. Hertz D. s^-1
5	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
6	If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:	A. 250 N m^-1 B. 25 N m^-1 C. 2.5 N m^-1 D. None of these
7	A body with frequency of would complete one vibration in:	A. f seconds B. 1/f seconds C. 1 second D. f²second
8	A spring of constant k = 0.4 N m^-1is to be extended through 10 cm at a place where g = 10 m sec^-2. The mass to be suspended should be:	A. 4 gms B. 0.4 gm C. 40 gms D. None of these
9	An angle of 180° in circular motion is equivalent to ______ in SHM.	A. Half the vibration B. One vibration C. 3/4th of a vibration D. None of these
10	The displacement of body executing SHM is	A. x_ocoswt B. x_osinwt C. x_osin²wt D. Both A, B