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Index: Units & Measurement | Physics Class 11 - NEET PDF Download

"Units & Measurement” chapter of Physics has a 1% weightage in NEET Exam from 2000 - 2023. Here is the list of some Important Topics:-

1. Dimensions of Physical Quantities

2. Dimensional Analysis and its Applications

3. Accuracy and Precision

The following chart shows the topic-wise weightage of "Units & Measurement"  in the NEET exam: 

Index: Units & Measurement | Physics Class 11 - NEET

(a) Introduction

(b) Measurement of Length, Mass & Time

(c) Dimensions of Physical Quantities

(d) Significant Figures

(e) Accuracy, Precision of Instruments and Errors in Measurement

(f) Tests of the Chapter

(g) Solution of DC Pandey

(h) H.C. Verma Solutions

(i) NCERT Book & Solutions

(j) Past Year Paper | Doc and Test

The document Index: Units & Measurement | Physics Class 11 - NEET is a part of the NEET Course Physics Class 11.
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FAQs on Index: Units & Measurement - Physics Class 11 - NEET

1. What are the different units of measurement used in science and everyday life?
Ans. In science and everyday life, various units of measurement are used, including length (meter), mass (kilogram), time (second), temperature (degree Celsius), and volume (liter). These units provide a standardized way of quantifying physical quantities and are essential for accurate measurement and communication.
2. How are units of measurement standardized?
Ans. Units of measurement are standardized through international agreements and organizations. The International System of Units (SI) is the most widely used system, which provides a set of seven base units for measuring fundamental quantities. These base units can be combined to derive other units. National metrology institutes worldwide ensure the consistency and accuracy of measurements by maintaining primary standards and conducting comparisons and calibrations.
3. What is the importance of using standard units of measurement?
Ans. The use of standard units of measurement is crucial for ensuring consistency, accuracy, and comparability in scientific research, engineering, and everyday life. It allows for effective communication, reliable data analysis, and reproducibility of experiments. Standard units enable scientists, engineers, and individuals to make meaningful comparisons and calculations, facilitating advancements in various fields.
4. How do scientists convert between different units of measurement?
Ans. Scientists convert between different units of measurement using conversion factors or conversion formulas. Conversion factors represent the numerical relationship between two units and are based on equivalence between them. For example, to convert meters to centimeters, one can use the conversion factor 1 meter = 100 centimeters. By multiplying or dividing the given value by the appropriate conversion factor, scientists can convert measurements accurately.
5. Can you provide some examples of derived units in the International System of Units?
Ans. Derived units in the International System of Units (SI) are obtained by combining the base units. Some examples include: - Newton (N): The unit of force, derived from the base units of kilogram, meter, and second (N = kg · m/s^2). - Joule (J): The unit of energy, derived from the base units of kilogram, meter, and second (J = N · m = kg · m^2/s^2). - Watt (W): The unit of power, derived from the base units of kilogram, meter, and second (W = J/s = kg · m^2/s^3). - Coulomb (C): The unit of electric charge, derived from the base units of ampere and second (C = A · s). - Hertz (Hz): The unit of frequency, derived from the base unit of second (Hz = 1/s).
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