**Description:**

**Salient
Features of the Books:**

- A list of commonly
used
*Experiment Tools* in Physics laboratory - A section on
*Laboratory
Ethics* given in the beginning includes a set of guidelines to remind
students on how to conduct while working in the laboratory *Experiments* given in a systematic way*Procedure* aided with neat and labelled diagrams,
wherever necessary- Questions to prepare
for
*Viva Voce* given at the end of each experiment

**Contents:**

__Unit 1: Vernier
Callipers: Measuring Length and Diameter of a Small Cylinder__

**Experiment 1:** To determine the least count of the
vernier callipers and measure the length and diameter of a small cylinder, may
be a metal rod of length 2 to 3 cm and diameter 1 to 2 cm

__Unit 2: Screw Gauge:
Measuring Diameter of a Wire__

**Experiment 2:** To determine the pitch and least count of
the given screw gauge and measure the mean radius of a given wire

__Unit 3: Calculation
of Volume, Mass and Density of a Regular Solid Body__

**Experiment 3:** To measure the length, breadth and
thickness of a glass block using a metre rule and calculate its volume in cm^{3}
and m^{3}. Then to determine the mass of the block in g and kg using a
physical balance and to calculate the density of glass in cgs and SI units
using mass and volume in respective units. Obtain the relation between the cgs
and SI units of density.

__Unit 4: Measurement
of Volume of a Metal Bob (Pendulum Bob)__

**Experiment 4:** To measure the volume of a metal bob
(pendulum bob) from the readings of water level in a measuring cylinder using
displacement method and to verify the same volume from the radius measured
using vernier callipers

__Unit 5: Calculation
of Time Period of a Simple Pendulum__

**Experiment 5:** To calculate the time periods (T) and
their squares (T^{2}) for each length (*l*) for 20 oscillations of
a simple pendulum of lengths about 70, 80, 90, 100 and 110 cm each. Plot a
graph of *l* vs T^{2}, also obtain its slope and calculate the
value of g in the laboratory by the method, g = 4p^{2 }× slope.

__Unit 6: Relationship
Between Celsius and Fahrenheit Scales of Temperature__

**Experiment 6:** To determine the temperature of water
ranging from ice cold water to hot water using thermometers having Celsius and
Fahrenheit scales, and obtain the relationship between the two scales of
temperature and plot a graph of T_{F} vs T_{C}

__Unit 7: Reflection of
Light through a Plane Mirror__

**Experiment 7.1:** To verify the laws of reflection of light
by using a plane mirror

**Experiment 7.2:** To prove that the image formed in a plane
mirror is as far behind the mirror as the object is in front of it

__Unit 8: Reflection of
Light through Spherical Mirrors__

**Experiment 8.1:** To obtain the focal length of a concave
mirror by distant object method

**Experiment 8.2: **To obtain the focal length of a concave
mirror by one needle method

__Unit 9: Current
Electricity__

**Experiment 9:** To observe the brightness of two bulbs
connected in (i) series and (ii) parallel, and to find the resultant resistant
of the two bulb

__Unit 10: Magnetism__

**Experiment 10:** To plot the magnetic field lines around a
bar magnet and to find the regions where the combined magnetic field of the
magnet and the earth (resultant magnetic field) is (i) strongest, (ii) very
weak but not zero and (iii) zero

__Unit 11: Archimedes’
Principle__

**Experiment 11:** To determine the weight of a metal ball
in air as well as in water using a spring balance and to verify the Archimedes’
principle

**About the Author:**

**Neha
Sharma **is a gold
medalist in M.Tech. from Guru Gobind Singh lndraprastha University. She did her
M.Sc. in Physics from University of Delhi and has worked as an Assistant Professor
in Galgotias College of Engineering and Technology, Greater Noida for more than
seven years. Presently she is working as PGT Physics in a reputed school in
Delhi.

**Target Audience:**

ICSE students of class 9.