 # INSTRUMENTAL PHYSICS Teacher

##### ALOK KUMAR RANA Category

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## Course Objectives

1. To gain practical knowledge by applying the experimental methods to correlate with the Physics theory.
2. Apply the analytical techniques and graphical analysis to the experimental data.

## Learning Outcomes

1. Apply the various procedures and techniques for the experiments.
2. Use the different measuring devices and meters to record the data with precision.
3. Develop basic communication skills through working in groups in performing the laboratory experiments and by interpreting the results.

## Course Syllabus

Section-A(Compulsory)

1. Measurement of volume of a solid cylinder by Vernier Caliper.

2. Measurement of thickness of a hallow cylinder by Vernier Caliper.

3. Measurement of radius of a wire by Screw gauge.

4. Measurement of radius of curvature of a spherical surface by Spherometer.

5. To determine young’s modulus of elasticity of the material of a given wire.

6. To determine the surface tension of water by capillary rise method.

Section-B(Any One from each group)

7. Acceleration due to Gravity (g)

a. To find out the value of “g” by using Simple pendulum.

b. To find out the value of “g” by using Bar pendulum.

8. Thermal Conductivity

a. Determination of thermal conductivity of good conductor by Searle’s method.

b. Determination of thermal conductivity of bad conductor by Lee’s disc method.

9. Reflection

a. To prove the law of reflection through a plane mirror.

b. To prove, for a fixed incident ray, the angle of the reflection is twice the angle through which the mirror has rotated.

10. Refraction

a. To prove the law of refraction through a glass slab.

b. To prove the law of refraction through water.

11. Resistance

a. To verify the laws of combinations( Series/ Parallel ) of  resistances  using  Meter bridge.

b. To determine the specific resistance of a wire using Meter bridge

12. Magnetism

a. To draw the lines of force of a bar magnet by using iron dust.

b. To draw the lines of force of a bar magnet by using a plotting  compass.

13. Refractive Index

a. To determine refractive index of a glass slab using a travelling microscope.

b. To find refractive index of a liquid by using convex Lens and plane mirror.

14. Friction

a. To determine the coefficient of friction by inclined plane method.

b. To determine the kinetic coefficient of friction for a block on a horizontal board.

15. PN Junction

a. Study the characteristics of  PN junction diode in forward  bias. Find out the forward resistance.

b. Study the characteristics of  PN junction diode in reverse bias. Find the reverse resistance.

TEXT BOOK :

ISC Practical Physics by V. N. Shukla

## Session 1

Measurement of volume of a solid cylinder by Vernier Caliper.

DEMO :

Use of vernier caliper to measure any outer length. Working formula for Volume of a solid cylinder.

PRACTICE :

Measurement the outer diameter & radius by using vernier caliper. Verification of Error and Accuracy in the measurement.

VERNIER CALIPER

## Session 2

Measurement of thickness of a hallow cylinder by Vernier Caliper.

DEMO :

Use of vernier caliper to measure any inner length. Working formula for Thickness of a hallow cylinder.

PRACTICE :

Measurement of inner diameter by using vernier caliper.
Verification of Error and Accuracy in the measurement.

VERNIER CALIPER

## Session 3

Measurement of radius of a wire by Screw gauge.

DEMO :

Use of Screw gauge to measure any thin length. Working formula for Thickness of a hallow cylinder.

PRACTICE :

Measurement of diameter & radius of a thin wire by using screw gauge. Verification of Error and Accuracy in the measurement.

SCREW GAUGE

## Session 4

Measurement of radius of curvature of a spherical surface by Spherometer.

DEMO :

Use of Spherometer.  Working formula for Radius of Curvature

PRACTICE :

Measurement of height & calculation of Radius of curvature by using spherometer.
Verification of Error and Accuracy in the measurement.

SPHEROMETER

## Session 5

To determine young’s modulus of elasticity of the material of a given wire.

DEMO :

Brief description on Young's modulus and its significance. Determination of Young's modulus of elasticity by using Searle's apparatus.

PRACTICE :

Calculation of the Young’s modulus & verification of its significance.

YOUNG'S MODULUS

## Session 6

To determine the surface tension of water by capillary rise method.

DEMO :

Brief description on Surface tension. How to determine the Surface tension by capillary rise method

PRACTICE :

Determination of Surface tension property & capillarity action of liquid. Verification of the significance of surface tension.

SURFACE TENSION

## Session 7

To find out the value of “g” by using Bar pendulum.

DEMO :

Brief description on Gravitation and acceleration due to gravity with example. How to find out `g' by using Simple pendulum.

PRACTICE :

Measurement of Acceleration due to gravity and verification of its significance and Error in the measurement.

BAR PENDULUM

## Session 8

Determination of thermal conductivity of good conductor by Searle’s method.

DEMO :

Brief description on Heat transfer, conductivity & its significance. How to measure the thermal conductivity of a good conductor by Searle's method.

PRACTICE :

Measurement of thermal conductivity of a good conductor. Verification of its significance and Error in the measurement.

THERMAL CONDUCTIVITY

## Session 9

To prove the law of reflection through a plane mirror.

DEMO :

Brief description of Reflection, its laws with example. How to verify the laws of Reflection by using a plane mirror.

PRACTICE :

Measurement of angle of incident and reflection. Verification of the laws of reflection.

REFLECTION THROUGH A PLANE MIRROR

## Session 10

To prove the law of refraction through a glass slab.

DEMO :

Brief description of Refraction, its laws with example. How to verify the laws of Refraction by using a glass slab.

PRACTICE :

Measurement of angle of incident and refraction. Verification of the laws of refraction.

REFRACTION THROUGH GLASS SLAB

## Session 11

Measurement of Specific resistance of wire by a Meter Bridge.

DEMO :

Brief description on Specific resistance with its significance. Use of meter bridge.

PRACTICE :

Measurement of the specific resistance of wire & verification of its significance.

METER BRIDGE

## Session 12

To draw the lines of force of a bar magnet by using a plotting  compass.

DEMO :

Brief description on Magnetic lines of force. Use of compass.

PRACTICE :

Drawing the Magnetic lines of force and identifying the Null point.

MAGNETIC LINES OF FORCE

## Session 13

To determine refractive index of a glass slab using a travelling microscope.

DEMO :

Use of traveling microscope. Working forum for refractive index.

PRACTICE :

Measurement of refractive index of a glass slab. Verification of its significance.

REFRACTIVE INDEX

## Session 14

To determine the coefficient of friction by inclined plane method.

DEMO :

Brief description on Coefficient of friction. How to determine it by inclined plane method ?

PRACTICE :

Measurement the coefficient of friction & understand it significance.

FRICTION

## Session 15

Study of characteristics of PN-Junction diode in forward bias.

DEMO :

Brief description on PN junction. How to measure the Forward  resistance ?

PRACTICE :

Recording the currents w.r.t the corresponding voltages. Drawing the characteristics curve. Finding its uses.

PN JUNCTION