grp study

the si unit of lenth is

• inches

• decameter

• metre

• kilometre

• none

_____________is a camera which shows inverted image

• pinhole

• miror

• shadow

• all

-____________________shows the outline of in mage

• miror

• shadow

• pinhole

draw a pinhole camera

____________shows the other side

which miror will u use for a wall where u can not see the other side

draw a shadow

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