Why is mercury used in thermometers rather than water?
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Explain the cause of brownian motion?
What is photometry?
What is the role of transformer in a rectifier?
what is the proper defination of 'LIGHT'
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Order the following categories of electromagnetic radiation from the lowest frequency to the highest? Fm radio, uhf tv, am radio, microwaves
How can it be proved that the window glass id colored ?
What is centigrade thermometer ?
Two bulbs, one of 600W and the other of 100W having same voltage rating are connected in series across the supply in a room.Which bulb will glow brighter? If one of the bulb is switched off, what will be effect on illumination?
how much mercury overflows when a glass vessel filled to the brim with 50 cubic centimeter of mercury 15°C is heated to 75°C of glass?
types of engines available...?and their functions
When a radar gun says the pitch is 90 miles per hour at what point in the balls travel to home plate is the radar gun measuring the velocity?
Why are prisms used in binoculars ?