Power Point Presentation

1. KERALA UNIVERSITY
N.S.S.TRAING COLLEGE, PANDALAM
B.Ed Course
2013- 2014
POWERPOINT PRESENTATION
Name ooff SSttuuddeenntt :: BBIINNDDHHUU..GG
OOppttiioonnaall SSuubbjjeecctt :: PPhhyyssiiccaall SScciieennccee
RReegg..NNoo.. :: 1133330044000055

2. WELCOME

3. EELLEECCTTRRIICC SSOOUURRCCEE OOFF LLIIGGHHTT

4. DIFFERENT TTYYPPEESS OOFF LLAAMMPPSS

5. IINNCCAANNDDEESSCCEENNTT LLAAMMPP
An incandescent light bulb, incandescent
lamp or incandescent light globe is an
electric light which produces light with a wire
filament heated to a high temperature by an
electric current passing through it, until it glows

6. PPAARRTTSS OOFF
IINNCCAANNDDEESSCCEENNTT LLAAMMPP

7. FFLLUUOORREESSCCEENNTT LLAAMMPP
A fluorescent lamp or a fluorescent tube is a low pressure
mercury-vapor gas-discharge lamp that uses fluorescence to
produce visible light. An electric current in the gas excites
mercury vapor which produces short-wave ultraviolet light that
then causes a phosphor coating on the inside of the bulb to
glow. A fluorescent lamp converts electrical energy into useful
light much more efficiently than incandescent lamps.
The luminous efficacy of a fluorescent light bulb can exceed 100
lumens per watt, several times the efficacy of an incandescent
bulb with comparable light output.

8. PPAARRTTSS OOFF
FFLLUUOORREESSCCEENNTT LLAAMMPP

9. LLEEDD LLAAMMPP
An assortment of LED lamps commercially available as of
2010 as replacements for screw-in bulbs, including floodlight
fixtures (left), reading light (center), household lamps (center
right and bottom), and low-power accent light (right)
applications.

10. TTHHAANNKKSS