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ScreenA B

ScreenA B

Observe the

characteristics of

the image formed on

the screen at

different screen

distances from the

lens.

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Screen

Screen

When a screen is placedexactly where

the light rays converged,the image formed on the

screen is clear and

sharp (focussed)

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A

A

When a screen is placed nearer

to the lens (Point A),describe the characteristicsof the image formed on the

screen.

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B

B

When a screen isplaced far away fromthe lens (Point B),

describe thecharacteristics ofthe image formed on

the screen.

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A

A

When a screen isplaced nearer to thelens (Point A), the

image on the screen isblurred and diminished.

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A

Pinhole camera with

the screen near to the

pin hole.

Pin hole

Screen

The image is:

Blurred

Diminished

Real

Inverted

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B

B

When a screen isplaced far away from

the lens (Point B),the image on the

screen is blurred and

enlarged.

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B The image is:

Pinhole camera with

the screen far fromthe pin hole.

Pin hole

Screen

Blurred

Enlarged

Real

Inverted