MCQs (Multiple Choice Questions) of Wave Motion And Sound 2

31. The length of second pendulum is

(a) 2m                                                  (b) 0.5m

(c) 0.992m                                           (d) 4m

32. In transverse waves, the particles of the medium vibrate

(a)        Along the direction of wave motion

(b)       At right angle to the direction of wave motion

(c)        Mechanical waves

(d)       Transverse waves

33. Waves transmit from one place to another

(a) Wave length                                (b) Energy

(c) Mass                                             (d) Weight

34. The waves which require a material medium for their propagation are called

(a) Matter waves                               (b) Electromagnetic waves

(c) Carrier waves                               (d) Mechanical waves

 

35. Water waves are

(a) I ransverse waves

(c) Complex waves

(b) Longitudinal waves (d) Stationary waves

 

36. Mechanical waves are those which

(a)   Dot not need medium

(b)  Consume energy

(c)   Need medium

(d)  Carry energy but do not need medium

,         37. Total energy of a particle executing S.H.M at any displacement x

is given by

kx

(a)  _______________________ (b) kxo

2

kxo                                                     kx02

(c)  ______________________ (d) ____

2                                                            2

38. Frequency of a vibratory motion is

(a) Multiple of time period             (b) Reciprocal of time period

(c) Equal to time period                  (d) Less than time period

39. When the amplitude of a wave becomes double, its energy becomes

(a) Double                                          (b) Four times

(c) One half                                        (d) Nine times

40. The linear distance between two nearest points of a medium

vibrating in phase is

(a) Time period                                  (b) Frequency

(c) Phase difference                          (d) Wave length

31.

C

32.              b

33. b 34.

d

35.

a

36.              c

37. d 38.

b

39.

b

40.              d

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