Name some devices in which ...
What is (a) the highest, ...
Draw ray diagrams ...
The essential difference ...
Draw a labelled circuit ...
The land of India displays ...
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A large proportion of ...
Butanone is a four-carbon ...
What measures would you ...
When were the first written ...
Lakes are of great value to ...
The aim of a public interest ...
Which reaction take place ...
The black buck belongs to ...
