Choose the wrong link between technology and physics.

A total solar eclipse is observed from the earth. At the same time an observer on the moon views the earth. She is most likely to see ($E$ denotes the earth)

How is science different from technology?

Science , like any knowledge , can be put to good or bad depending on the user. Given below are some of the application of science. Formulate your views whether the particular applications is good, bad or something that cannot be so clearly categorised.

Purification of water for drinking.

Which one of the following statements is true about the ‘laws’ and ‘theories’ in science?

Which scientific instrument is used to record the speed of an aircraft?

Name the scientist and the country of his origin whose field of work was ‘cosmic rays’.