Oscillations and Waves (NEET Physics): Questions 92 - 95 of 192

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Question number: 92

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

A wave represented by the given equation Y=Asin(10πx+15πt+π3) where x is in meter and t is in second. The expression represents,

(1) A wave travelling in the negative X direction with a velocity of 1.5 m/sec

(2) A wave travelling in the negative X direction with a wavelength of 0.2 m

(3) A wave travelling in the positive X direction with a velocity of 1.5 m/sec.

(4) A wave travelling in the positive X direction with a wavelength of 0.2 m

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

2 and 4 are correct

b.

1, 2 and 3 are correct

c.

1 and 2 are correct

d.

1 and 3 are correct

Question number: 93

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

A chimpanzee swinging on a swing in a sitting position, stands up suddenly, the time period will

Choices

Choice (4) Response

a.

Remain same

b.

Become infinite

c.

Increase

d.

Decrease

Question number: 94

» Oscillations and Waves » Longitudinal and Transverse Waves

MCQ▾

Question

In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.125 second. The frequency of the wave is,

Choices

Choice (4) Response

a.

2.0 Hz

b.

1.47 Hz

c.

0.73 Hz

d.

2.94 Hz

Question number: 95

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

Two waves are given by y1=asin(ωtkx) and y2=acos(ωtkx) . The phase difference between the two waves is

Choices

Choice (4) Response

a.

π2

b.

π4

c.

π

d.

π8

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