Mirror that always forms Virtual image

Who invented infra red rays

Light sources emit _______ and energy.

Which mirror is used as rear view mirror in caves

Which colour of Sunlight is not required in photosynthesis

__________ colour is produced by the combination of 7 natural colours.

Magicians use ______ coloured dress to hide object.

Plane Mirror forms __________ and erect image.

Image that cannot be formed on a screen

The acronym for Light Amplification by Stimulate Emission of Radiation.