Oscillations and Waves (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics): Questions 3 - 7 of 8

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Question number: 3

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

A constant bore U-tube is held vertically containing a liquid column of total length 30 cm. The liquid column is made to perform simple harmonic motion. How much will be the maximum acceleration if the amplitude of motion is 3 cm?

Choices

Choice (4) Response

a.

1.946

b.

1.979

c.

18.57

d.

19.00

Question number: 4

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

For simple harmonic motion with amplitude 4 cm and time period 7 seconds, what is the velocity and acceleration at a displacement 3 cm from equilibrium position?

Choices

Choice (4) Response

a.

2.37, 2.42

b.

2.56, 2.73

c.

1.56, 2.18

d.

3.02, 3.34

Question number: 5

» Oscillations and Waves » Doppler Effect in Sound

MCQ▾

Question

A tuning fork vibrating at 160 Hz produces a sound wave which travels in air at a speed 300 ms-1. The distance travelled by sound during the time the fork makes 70 vibrations is,

Choices

Choice (4) Response

a.

127 m

b.

131 m

c.

137 m

d.

120 m

Question number: 6

» Oscillations and Waves » Longitudinal and Transverse Waves

MCQ▾

Question

A tuning fork vibrating at 240 Hz produces a sound wave which travels in air at a speed 475 ms-1. The distance travelled by sound during the time the fork makes 65 vibrations is,

Choices

Choice (4) Response

a.

137.75 m

b.

128.63 m

c.

131 m

d.

120.85 m

Question number: 7

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

When a plane wave travels in a medium, the displacement of particle are given by,

Equation

Where x and y are in metre and t in second. Frequency of the wave is,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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