Tuesday, April 26, 2011

HTML form making program, form of Registration, HTML registration form

Make your own form programm Of HTML Registration for std 12.

Here is the sample of registration program, it is in simple way of making you understand, which you can develope yourself as per your design & requirements. for more sample program you can view the lable and find out your desire requirements.


<html>
<head>
<title>Whz kid Form</title>
<style type="text/css">
h1{font-size:26;
color:Blue;
font-family:Gujrati Saral-3;}
h3{font-size:15;
color:Red;
font-family:Times New Roman;}
lable { text-align:left;
width:130px;
display:block;
color:Green;
float:left;
clear:left;}
</style>
</head>
<body>
<form name="frm1" action="new.html" method="get">
<h1><center> xiKt iv2aly </center></h1>
<h3> Login Information </h3>
<lable for="username"> Username: </lable>
<input type="text "name="username " value="username "size="10"maxlength="10">
<br>
<lable for="email "> Email: </lable>
<input type="text" name="email " value="enter email here "size="25"maxlength="30">
<br>
<lable for=" password1"> Password: </lable>
<input type= "password " name="password1">
 <small> must be 8-25 characters long </small>
<br>
<lable for="password2"> Confirm Password: </lable>
 <input type="password" name ="password2 ">
 <small> should match the password </small>
<br>
<h3> Other information</h3>
<lable for="name "> Name: </lable>
<input type="text" name="name">
<br>
<lable for="mobile"> Mobile No: </lable>
<input type="text"  name="mobile">
<br>
<lable for="imageName"> Image:</lable>
<input type="file"name="ImageName">
<small> upload your image file(optional)</small>
<br>
<lable for="Country">Country:</lable>
<select name="Country" >
<option  value="France">France</option>
<option  selected value="India">India</option>
<option value="New Zeland">New Zeland</option>
<option value="United Kingdom">United Kingdom</option>
<option value="United States">United States</option>
</select>
<br>
<lable for="alertBy">Receive alert by:</lable>
<input type="radio" name="alert by" value="Email"checked>Email
<input type="radio" name="alert by" value="SMS">SMS <br>
<lable for="game"> Games of Interest:</lable>
<input type="checkbox" name="game" value="Shooting"checked>Shooting
<input type="checkbox" name="game" value="Puzzle">Puzzle
<input type="checkbox" name="game" value="Detective">Detective
<input type="checkbox" name="game" value="scrabble">Scrabble
<br>
<br>
<lable></lable>
<input type="Reset" value="Reset">
<input type= "Submit" value="Submit"><br>
</form>
</body>
</html>

Friday, March 25, 2011

Ohm's law Experiment presentation with Audio and Video for std 12 Physics


Ohm's Law
AIM :-A voltmeter, a current meter, and an unknown resistance etc. are given to you. Prepare an appropriate circuit to verify Ohm’s law. With appropriate values of current and voltages, only with the help of calculations, determine the value of unknown resistance.
PRINCIPLE : Potential difference in a conductor produces electric current.
APPARATUS :-
A unknown resistance,
a voltmeter (0 - 10 V),
a milliammeter (0 - 500mA), a battery,
a rheostat,
a tap key,
connecting wires.

Sunday, March 20, 2011

Internal Resistance of Primary Cell Experiment Potentiometer for std 12

Internal Resistance of Primary cell With the help of Potentiometer
EXPERIMENT :- 7
Internal resistance of primary cell
AIM :
To find the internal resistance of a primary cell, by calculation and from a graph, with the help of a potentiometer.
PRINCIPLE :
It works on the principle of potentiometer.
Apparatus:
A potentiometer having a long (~400 cm) resistive wire of uniform cross-section, a battery E of 3 to 4 V, a primary cell ( dry cell or Laclanche cell or a Daniel cell), two rheostats [ 0 – 25 W (Rh1) and 0 – 500 W (Rh2) ], a galvanometer, a R.B.(0 – 50 W), two simple keys and a jockey.
Internal Resistance of Primary Cell Experiment Apparatus
Internal Resistance Of Primary cell wiring diagram experiment
Internal Resistance Of Primary cell Observation table 
Internal Resistance Of Primary cell with graph 
Internal Resistance Of Primary cell Slop Experiment

Internal Resistance of Primary cell With Potentiometer Experiment Video

Copper voltameter Experiment for std 12 Physics with animation Video

AIM :-
Connect given copper voltameter in an appropriate circuit determine the electro chemical equivalent of copper.
PRINCIPLE :-
On passing electric current through CuSO4 solution, Cu+2 and SO-24 ions are separated or chemical effect of electric current.
APPARATUS :-
A copper voltameter,
6 V battery ( or D.C. Mains),
an ammeter,
a rheostat,
a simple key,
sand paper,
a stop-watch, balance,
weight box, etc.
Copper Voltameter Experiment  Apparatus
PRECAUTIONS
The cathode plate should be throughly cleaned after rubbing with sand paper.
Pass only that much current as is obtained from the calculation of the area of the immersed part of the cathode plate.
Use only a fresh solution of CuSo4. To prepare the solution dissolve about 25 g of CuSO4 crystals in 100 cm3 water. Add a few drops of sulphuric acid (H2SO4) to make it more conducting.
Hold the plate from its upper end so as to avoid touching its surface.
Cathode plate should be washed immediately after it is taken out of the solution.
Copper Voltameter  Experiment Line Diagram
Copper Voltameter  Wiring Diagram for Std 12 Experiment
PROCEDURE :-
1. To Cathode plate dip in clean water, and wash off all the CuSO4, solution sticking to it. Thereafter wash it again with tap water.
2. Hold it in the sunshine for some time till it dries out. Now find out its mass by Physical balance.

Observation table for Copper Voltameter
Copper Voltameter Experiment Observation Table

Copper Voltameter  Experiment Calculation
Copper Voltameter Experiment presentation Video.

Monday, March 14, 2011

Beautiful White material Monuments antique picture makes world nice

When rising in the morning
take time to pray
Wisest thing to do
before you begin the day

Ask God for His blessings
for what the day may bring
He'll guard and keep you
in the midst of everything

Your day will be brighter
sweet peace will abide
Seek the Lord
you won't be denied
When d sun sets...pray again and thank d Lord 4 all d graces we rcvd 4 d day...reflect and ask 4gvness from our sins...







Monday, February 14, 2011

Angle of Prism, Physics practical for the standard 12

REFRACTIVE INDEX OF PRISM
AIM:-
Determine with the help of pins, the angle of the given glass prism. Determine the values of angle of emergence and angle of deviation for four different values of angle of incidence. Hence prove that i + e = A +d.
PRINCIPLE :
Reflection and refraction of light.
PRECAUTIONS
 While marking the position of a prism with pencil, the prism should not be disturbed. 
A prism should be carefully put back exactly at the marked position. 
While pressing the heads of the pins for fixing them use metal coin or a hard object so that you do not hurt your palm. 
Do not press the pins very hard in the board otherwise it becomes difficult to remove them afterwards. 
See that the pins pushed in the board remain perpendicular to the board.
Angle of Prism 








Angle of Prism Conclusion





REFRACTIVE INDEX OF PRISM
AIM :-
Using pins with a given prism determine the angles of deviation for six different values of angle of incidence. Draw the graph of angle of deviation versus angle of incidence. Determine, from this the angle of minimum deviation and using following formula determine refractive index of material of the prism.
Angle of Prism Formula






Angle of prism, A = ……. .

Angle of Deviation measure
Angle of Deviation














Angle of Deviation Observation table  










Angle of Deviation Graph

Tuesday, February 1, 2011

Waves

" WAVES "

Wave
A wave is a disturbance that moves through a medium. The energy is transferred from one point to another without transport of any matter.

Frequency
It is the no. of waves passing through a point in the medium in one second (unit is Hertz).

Wave Length
The distance between two consecutive crests or two consecutive troughs is called wave length .
For the light waves, if the wave length is different, color of the light will be different.

Amplitude
The maximum displacement of the particle of the medium is called the amplitude of the wave.
When something vibrates it produces a sound. The energy of the the vibrations is passed on to the molecules in the surrounding air and makes them move. Thus the sound wave falls on the ear and the sound is heard. The stronger the vibrations, the longer the amplitudes and the louder the sounds.

Velocity
Wave velocity is the distance through which the wave moves in one seconds. Velocity of light is more than the velocity of sound, so in a thunderstorm, lightning will always be seen before the clap of thunder.
Waves Velocity












Waves are of two types

Transverse wave
If the displacement of the individual atoms  or Molecules is perpendicular to the direction of the wave, the wave is called a Transverse wave ( light wave ). 
Transverse wave








Longitudinal wave
If the displacement of  the individual atoms or molecules is parallel to the direction of the wave, the wave is called a Longitudinal wave  ( sound wave ).

     
Longitudinal wave     








SOUND
STANDING WAVES
In a string fixed on both ends, when we strike or pluck at some point, waves propagate towards both ends & after reflection from the ends, overlap on each other to produce standing waves.

SOUND
STANDING WAVES












A violin string oscillates at a fundamental frequency.
 
Musical Instruments.

Musical Instruments.

















Wind instruments.
Standing wave can also be produced in air columns. In organ pipes(open at both ends), bugle & flute (closed at one end) and in tabla & dholak (closed at both ends) standing waves on air column produces sound.

Wind Instruments.
Different tones are produced by the same instrument depending on the type of vibrations. Here the fundamental & first two overtones are shown for both open end & closed at one end air column vibrations.
The wavelength (l) of the sound wave depends on the length (L) of the air column. 

Wind instrument















String instruments.
The simplest form of string instrument is just a stretched string over a resonating body to amplify the sound.The standing waves produced in strucked string (piano) bowed string(violin)& plucked string (sitar & sarod) musical instruments produce a range of musical sounds.

Musical Instruments









AUDIBLE FREQUENCY RANGE
We can hear the sound if the frequency lies between 20 Hz. to 20 kHz. We hear low frequencies as low pitched and high frequencies as being high pitched.

AUDIBLE FREQUENCY RANGE
 














ULTRASONIC & SUBSONIC WAVES
Sounds above audible frequency are called ultrasonic and sounds below audible frequency are called infrasonic or subsonic sounds.
Elephants use very low-pitched sounds, below the level of human hearing ( subsonic sounds), that call other members of the heard over many miles. 

 
ULTRASONIC & SUBSONIC WAVES









APPLICATIONS OF ULTRASONIC SOUNDS
1. Sonar receptors in Bats &Whales:- The bats & whales send out some ultrasonic rays, which bounce back from the prey and are received by this system and they can locate the prey.

Sonar receptors in Bats &Whales












2. Application in Medicine :- Instead of stethoscope ultra-sonography is used as a tool by physicians, to scan abdominal, pelvic and cardiac areas. 
Application in Medicine













Ocean Depth
3. Ocean depth can be found by measuring the time between sending out an ultrasonic signal and receiving the echo reflected from the ocean bed.

Ocean depth











Detection of  MINERAL OIL
4. Oil layer reflects a  certain pattern of echoes which is detected by a seismograph.
Detection of  MINERAL OIL















Doppler effect
As the car moves away,wave fronts of its whistle take longer time to reach a listener, who hears a drop in pitch.- Long Wavelength -Low Frequency

As the car comes closer, sound wave fronts reach a listener ever more quickly and seem to rise in pitch.    Small Wavelength- High Frequency.

Doppler effect

















Tuning Fork
When we strike a tuning fork, it will vibrate in a fixed frequency and a particular sound will be heard.

Tuning Fork








Sound waves produced by a tuning fork.

Acoustics of Auditorium
The clearest speech is heard in an auditorium when there is a time gap of 1/20th of a second between the reflected rays and the direct rays, otherwise they will overlap and no sound can be heard clearly.

Acoustics of Auditorium










TEST YOURSELF