The malayalam film director who recived Dada Sahib Phalke Award:... A)Adoor Gopalakrishnan B)Mohanlal C)Mammootty D)Ramu Kariat. Ans:A

The country which implemented postal stamp first:...A)India B)England C)China D)Japan
Ans:B

Crescograph : Instrument used to record the growth of plants.

Compass Needle : For knowing approximately the north-south direction of a place.

Cinematograph : Instrument used to reflect the image of picture on a screen.

Colorimeter : For comparing intensities of colour.

Cardiogram : Instrument used to trace .the movements of hearts.

Commutator : An instrument to change or reverse the direction of an electric current.