Real image

Virtual image

Violet

Red

Prism

Newton disk

White

Primary colors

Secondary colors

Light beam

the images that are obtained on the screen

the images that cannot be obtained on the screen

shorter wavelength

longer wavelength

an object that has atleast two flat surfaces from an acute angle

cardboard disc with 7 equal sectors colored VIBGYOR

combination of VIBGYOR

red, blue and green

magenta, cyan and yellow

parallel, convergent or divergent