For example, if you , by habit, always hold your head a bit too far to the right while reading the position of a needle on the scale, you will introdue an error called as

Options

A. Random errors
B. Perfect errros
C. Parallax errors
D. Least count errors

Answer

To solve the question, we need to identify the type of error introduced when a person consistently holds their head at an angle while reading a measurement. Here’s the step-by-step solution:

### Step 1: Understand the context of the question
The question describes a scenario where a person has a habit of positioning their head too far to the right while reading a scale. This action can lead to an inaccurate reading of the measurement.

**Hint:** Consider how the position of the observer can affect the accuracy of the measurement.

### Step 2: Identify the type of error
In measurement, errors can arise from various sources, including personal biases. When a person consistently reads a measurement from an angle rather than directly, it can lead to misinterpretation of the scale.

**Hint:** Think about how viewing angles can distort the perceived position of a needle on a scale.

### Step 3: Define the specific error
The specific error that arises from viewing an object from an angle rather than straight on is known as a "parallax error." This type of error occurs because the position of the observer affects the reading, leading to a discrepancy between the actual value and the measured value.

**Hint:** Recall that parallax errors are common in situations where precise measurements are required, such as in scientific experiments.

### Step 4: Conclusion
Based on the understanding of the scenario and the definition of the error, we conclude that the error introduced by holding the head too far to the right while reading the position of a needle on the scale is called a "parallax error."

**Final Answer:** The error is called a parallax error.