Oscillations and Waves (NEET Physics): Questions 104 - 108 of 192

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Question number: 104

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

The length of a simple pendulum is 2 m. The spherical bob which is empty from inside has a mass of 50 gm. This is now replaced by another solid bob of same radius but having different mass of 100 gm. The new time period will be,

Choices

Choice (4) Response

a.

4 sec

b.

2 sec

c.

1 sec

d.

8 sec

Question number: 105

» Oscillations and Waves » Wave Motion

MCQ▾

Question

The equation of a plane progressive wave is given by y=0.025sin(100t+0.25x) . The frequency of this wave would be,

Choices

Choice (4) Response

a.

50πHz

b.

100πHz

c.

100Hz

d.

50Hz

Question number: 106

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

MCQ▾

Question

A mass m is suspended from the two coupled springs connected in series. The force constant for springs are k 1 and k 2. The time period of the suspended mass will be,

Choices

Choice (4) Response

a.

T=2π(mk1+k2)

b.

T=2π(m(k1+k2)k1k2)

c.

T=2π(mk1k2)

d.

T=2π(mk1k2k1+k2)

Question number: 107

» Oscillations and Waves » Displacement as a Function of Time

MCQ▾

Question

The displacement of a particle executing S. H. M is given by y=0.65sin400t meters. The maximum speed of the particle and amplitude of the motion is,

Choices

Choice (4) Response

a.

100 m/s and 1.30 m

b.

250 m/s and 0.65 m

c.

260 m/sec and 0.65 m

d.

200 cm/sec, and 0.65 m

Question number: 108

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

A wave of frequency 400 Hz has velocity 360 m/sec. The distance between two nearest points 60° out of phase, is

Choices

Choice (4) Response

a.

15 cm

b.

12 cm

c.

0.6 cm

d.

60 cm

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