Which of the following devices converts light signals into electrical (or) electronic signals?
(1) Digital camera.
(2) Fax machine
(3)Optical transmitter

A man sitting in the revolving chair with stretched hands, suddenly bend his hands, the angular velocity

Which of the following statements is/are wrong?
(1)Light year is a unit of time
(2)Astronomical unit (AU) is a unit of distance.
(3)Parsec is a unit of mass.

Identify the incorrect pair :
I.Washing soda-$Na_{2}CO_{3}$
II.Bleaching powder-$CaO$
III.Plaster of paris-$CaSO_{4}\dfrac{1}{2}H_{2}O$
IV.Baking soda-$NaHCO_{3}$

What are the chemicals present in match stick?

Identify the odd person out of the following.

Mention the floriculture centre started recently under the Indo Israel joint agreement on agricultural project

The Planning Commission in India is now known as

Who among the following has been appointed as the Deputy Director General for programmes of the World Health Organisation?

In order to encourage the powerloom sector and help small industrious, and joint venture launched by the ministry of powerloom and textiles in 2017 is called