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The correct answer is A
If a medium has a critical angle for total internal reflection from the medium to vacuum as 90°, what is the velocity of light in the medium? (Take c =...
A black body at temperature 500 K emits radiation. If its temperature is doubled, by what factor does its emitted power increase?
0°K is equivalent to
Cryogenics is the branch of physics that deals with what?
Electrostatic precipitator is used to control —
What will happen to the volume of ozone, when it is heated?
A body falls freely from a height of 80 m. Time taken to reach the ground is:
X-rays are
The material which can be deformed permanently by heat and pressure is called a: