How does laser printer works?
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What is Colours of bodies ?
What is the velocity of sound air?
the department of energys b-factory at the stanford linear accelerator lab is designed to collide electron and positron beams of unequal energies and producemillions of these particles, which are commonly called?
What is the role of transformer in a rectifier?
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?
pressure is greater at the time of walking or standing when ?
Examine the working of the Refrigerator?
What is reverberation?
a person carrying a bucket of water will leans towards his left why?
define rectilinear propagation of light?
Explain what is time?
When a water pump falls to draw water, a bucket of water poured into it sets it working. Why ?