# Oscillations and Waves (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 193 - 195 of 195

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## Question number: 193

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

Appeared in Year: 2017

MCQ▾

### Question

A spring of force constant is cut into lengths of ratio . They are connected in series and the new force constant is . Then they are connected in parallel and force constant is . Then is –

### Choices

Choice (4) Response

a.

b.

c.

d.

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## Question number: 194

» Oscillations and Waves » Doppler Effect in Sound

Appeared in Year: 2017

MCQ▾

### Question

Two cars moving in opposite directions approach each other with speed of and respectively. The driver of the first car blows a horn having a frequency . The frequency heard by the driver of the second car is [velocity of sound ]:

### Choices

Choice (4) Response

a.

b.

c.

d.

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## Question number: 195

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

Appeared in Year: 2017

MCQ▾

### Question

The two nearest harmonics of a tube closed at one end and open at other end are and . What is the fundamental frequency of the system?

### Choices

Choice (4) Response

a.

b.

c.

d.

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