define rectilinear propagation of light?
Answer / snehal
light travel in a straight line without any deviation through vacuum or same medium.
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what is meant patch cards..
a ball of mass 500g moving with a velocity of 10m/s collides with another ball of mass 250g.after the impact,the second ball moved off with a velocity of 8m/s calculate the final velocity of the first ball.
Explain what is the difference between diffraction and interference?
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How many pounds does one gallon of water weigh?
Is air travel time the same whether or not the plane is flying with or against the rotation of the earth?
What would happen if a disk one light second in circumference were to spin at 60 rpm?
In radio transmission, what does the acronym am stand for?
Define Umbra?
What is different between secondary electron image and back scattered electron image?
If the distance separating two charges is doubled, the force between them decreases by what multiple factor?