# Physics and Measurement-Errors in Measurement (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 12 - 17 of 29

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## Passage

The internal radius of a 1 m long resonance tube is measured as 3 cm. A tuning fork of frequency 2000 Hz is used. The first resonating length is measured as 4.6 cm and the second resonating length is measured as 14.0 cm.

## Question number: 12 (2 of 3 Based on Passage) Show Passage

» Physics and Measurement » Errors in Measurement

MCQ▾

### Question

Calculate the speed of sound at the room temperature.

### Choices

Choice (4) Response

a.

275 m/s

b.

330 m/s

c.

376 m/s

d.

356 m/s

## Question number: 13 (3 of 3 Based on Passage) Show Passage

» Physics and Measurement » Errors in Measurement

MCQ▾

### Question

Calculate the maximum percentage error in measurement of e.

### Choices

Choice (4) Response

a.

3.33%

b.

4.33%

c.

2.23%

d.

5.33%

## Question number: 14

» Physics and Measurement » Errors in Measurement

MCQ▾

### Question

If 97.52 is divided by 2.54, the correct result in terms of significant figures is

### Choices

Choice (4) Response

a.

38.4

b.

38.39

c.

38.394

d.

38.937

## Question number: 15

» Physics and Measurement » Errors in Measurement

MCQ▾

### Question

In the context of accuracy of measurement and significant figures in expressing results of experiment, which of the following is/are correct?

1. Out of the two measurements 50.14 cm and 0.00025 ampere, the first one has greater accuracy
2. Out of the two measurements 50.14 cm and 0.00025 ampere, the second has greater accuracy
3. If one travels 697 m by rail and 478 km by road, the total distance is 478.697 km.
4. If one travels 478 km by rail and 397 m by road, the total distance travelled is 875 km.

### Choices

Choice (4) Response

a.

1 and 3

b.

1 and 2

c.

2 and 4

d.

1,2, 3

## Question number: 16

» Physics and Measurement » Errors in Measurement

MCQ▾

### Question

Which of the following pairs have same dimensions?

### Choices

Choice (4) Response

a.

Energy and wavelength

b.

Torque and Energy

c.

Angular momentum and work

d.

Energy and Young’s modulus

## Question number: 17

» Physics and Measurement » Errors in Measurement

MCQ▾

### Question

Error in the measurement of radius of a circle is 1%. The error in the calculated value of its area is

### Choices

Choice (4) Response

a.

3%

b.

2%

c.

7%

d.

1%

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