What is non-luminous ?

• Light

• Sound

• Things that produce there own light

• Things that dont produce there own light

What is lumious ?

• Thing that produce there own light

• Things that relects light

• Things that dont produce there own light

• Sound waves

Which have only luminous object?

• torach,sun,fire,firefly,stars

• Moon,stars,sun,fire

• Car,slippers,

• Fire,tree

1.What make a shadow ?

• Opaque object

• Opaque and water

• Opaque Object and light

• Transprent object and light

Which have only non-luminous object?

• Moon,table

• Star

• Firefly

• Fire

The bending of light is

• Refraction

• Transprent

• Opaqe

Whats the focal point ?

• When the light is dark

• When the light is bright

• Were all the light rays meet

• All of the above

Which have only non-luminous object

• Moon,table,chair,book

• Sun,fire,blub

• None of the above

• All of the above

Concave is inward

• True

• False

Convex is out ward

• True

• False