T0 MY PRESENTATION

MD. SHOBHANLECTURER, DEPARTMENT OF PHYSICS MILESTONE COLLEGE, DHAKA.

CHAPTER TWENTY FOURMODERN PHYSICS CLASS- IX

LEARNING OUTCOME

X-ray and production of X-ray

Classification and uses of X-ray

They will be capable to say the …

Difference between X-ray and general light

Production of X-ray

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X-ray General Light

X-ray can ionize a gas.X-ray is not perceptible. It is divided into different colours.It can penetrate any opaque body.

It can not penetrate any opaque body.

It’s wave lengths is low. It’s wave lengths is high.

It can not ionize a gas.

1200 volt

ray

24 volt

- +

Soft X-ray:

30000 volt

ray

24 volt

- +

Hard X-ray:

Soft x-ray

X-ray in medical science

X-rays in industries

X-ray in detective works

X-ray in medical science

X-ray in industries

X-ray in detective works

GROUP WORK

Evaluation:What are the difference between soft and hard X-rays ? What are the properties of X-rays ?

Analyze with comparison of general light with X-rays.

Home Task

ANY QUESTION ?

THANKS TO ALL