Why is it important not to expose a patient to x-rays for too long?
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Explain what is h1n1?
Why does a tilted gyroscope not fall?
How can light be defined in simplest form?
Explain what instrument is used to measure volume?
What are the seven colors of white light ?
Explain the Principle of Calorimetry ?
When a water pump falls to draw water, a bucket of water poured into it sets it working. Why ?
Why do we lean forward while climbing up a hill ?
Why is lighting conductor used ?
Explain the refraction of light ?
a car is travelling at 72kmph, and if that car slows down to 60kmph it takes an extra 1 hour to cover that same distance. at 72kmph, how long did it take for the car to cover that distance?
what is the principle used in electromagnetic spectrum?and why there is a necessary of having an electron with unpaired spins?and how the uncertainity principle is used to determine the frequency of an spectral lines ?