COMPTON EFFECT

COMPTON EFFECT

The compton effect states x-rays scattered by loosely bound electrons of target element have reduced energy and frequency. This phenomenon describes scattering between radiation and matter and confirms the particle nature of light.

EXPERIMENTAL ARRANGEMENT

The main apparatus used in experiment consists of
X-RAYS TUBE
GRAPHITE TARGET
AND
DETECTOR 'D'

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PHOTOELECTRIC EFFECT

PHOTOELECTRIC EFFECT

The conversion of light energy into electric energy is called photoelectric effcet. The device used to convert light energy into electrical energy is called photocell. The photoelectrons are emitted from photocell when light having frequency greater than threshold frequency shines on metal surface. The current established due to these photoelectrons is called photocurrent .

EXPERIMENTAL ARRANGEMENT

The apparatus used to study photoelectric effect consists of a...
PHOTOCELL
LIGHT SOURCE
AN AMMETER
VOLTMETER
POTENTIAL DIVIDER
AND
BATTERY
As shown in circuit diagram.The photocell is evacuated glass tube having two electrodes called emitter and collector.

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ABOUT X-RAYS

X-RAYS

The x-rays was discovered by Roentgen in 1885. The highly energetic electromagnetic radiation are emitted when fast moving electron penetrate into interior of atoms.These radiations are called x-rays.These radiations are also called inner shell transitions.The wave nature of x-rays was established by Berkely in 1906.The wavelength of x-rays was measured by Laue in 1912 which is of the order of nm. (Neno meter)

Production Of X-RAYS

The x-rays are generated when highly energetic electrons from heated filament strike on a metal target in evacuated tube as shown in diagram

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