PASSAGE-I: Human ears can pick up sounds ranging in amplitude (loudness) from 10 dB to 180 dB. A sound is considered to be normal if it is between 50 dB to 60 dB. Sounds above 80 dB are painful and cause various health problems.
The sound becomes painful, if loudness is

Options

A. above 50 dB
B. below 50 dB
C. above 80 dB
D. below 80 dB

Explanation

To solve the question regarding the loudness of sound and its effects on human health, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Decibel Scale**:
- The decibel (dB) scale measures the intensity of sound. It is a logarithmic scale, meaning that an increase of 10 dB represents a tenfold increase in sound intensity.

2. **Identifying Normal Sound Levels**:
- According to the passage, normal sounds range from 50 dB to 60 dB. This indicates that sounds within this range are generally comfortable for human ears.

3. **Recognizing Painful Sound Levels**:
- The passage states that sounds above 80 dB are considered painful and can lead to various health problems. This is a critical point in understanding the effects of loud sounds.

4. **Analyzing the Options**:
- The question provides three options regarding the loudness at which sound becomes painful:
- Option 1: Above 50 dB
- Option 2: Below 50 dB
- Option 3: Above 80 dB

5. **Selecting the Correct Option**:
- Since the passage clearly mentions that sounds above 80 dB can cause pain and health issues, we can conclude that the correct answer is **Option 3: Above 80 dB**.

### Final Answer:
The sound becomes painful if loudness is **above 80 decibels**.

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