Answered

1. Convert the following units:

A. 0.01 mm to fermi
B. 1 parsec to light years
C. 1 light year to meters
D. 1 quintal to kilograms

2. Short Answer Questions:

A. What is a simple pendulum? State the factors on which the time period of a pendulum depends.
B. What is the principle of vernier calipers?
C. Define 1 kilogram on an atomic scale.
D. Name three fundamental quantities.

3. What is backlash error? How is it avoided?



Answer :

Final answer:

A simple pendulum is a mass attached to a fixed length string or rod, with its time period dependent on length and gravity. Vernier calipers use a movable vernier scale for accurate measurements. The concept of 1 kilogram on an atomic scale refers to mass based on specific atoms.


Explanation:

Simple Pendulum:

A simple pendulum consists of a mass (bob) attached to a string or rod of fixed length. The time period of a pendulum depends on its length and the acceleration due to gravity.

Vernier Calipers:

The principle of vernier calipers involves the use of a movable vernier scale to measure accurately the internal and external dimensions of an object.

Atomic Scale Kilogram:

1 kilogram on an atomic scale refers to the mass of a specific number of atoms, based on the mass of a reference atom like carbon-12.

Backlash Error:

Backlash error is the looseness in mechanical systems that can cause misalignment. It is avoided by minimizing clearances and ensuring proper alignment of components.


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