List of Tests
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Which instrument is used to measure pressure?
Light year is related to
Joule is the unit of
The unit of current is
The scientist who first discovered that the earth revolves round the sun was
Who among following invented the steam engine?
. James Watt
Who invented typewriter?
The credit of inventing the television goes to
Who gave the theory of relativity
The credit of developing the polio vaccine goes to
. Jonas Salk
. Alb E. Sabin
. Selman Waksman
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