What is a galvanometer?
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What evidence is there supporting the big bang theory?
What are newton s laws of motion?
What is the Dry Ice?
Explain the Archimedes’s Principle ?
Explain what is different between secondary electron image and back scattered electron image?
Why gave we to put back the clock continually, when we travel round the world west-wards ?
Explain the difference between optical zoom, digital zoom and smart zoom?
A man asks his friend to meet him at the airport at 3.00pm,to drive him to an appointment.he catches an earlier plane,and arrives at the airport at 2.00pm.he decides to start walking and is picked up en route by his friend.he arrives twenty minutes early for his appointment.how long did he walk?
is it possible that the clock works differently in winter and in summer ?
Which particles/ rays do radioactive substances emit?
What cycle most directly describes the working cycle of a heat engine operating as an ideal engine of maximum thermal efficiency?
When a porcelain dish or a glass material are falling on the floor, it breaks but on falling on sofa or sponge it will not break. Why?