X-Ray is avoided by using ?
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When the seas freeze in-winter, the fish never die why?
What is the ray of light?
Explain the difference between isolation transformers and step up or step down transformer?
What is the velocity of sound in air ?
When a water pump falls to draw water, a bucket of water poured into it sets it working. Why ?
A bird sitting on a naked wire carrying current feels quite safe, but when the wire between his feet is cut and joined by a very long loop of wire, the bird dies. Why?
How can you estimate the height of a bridge by dropping a stone from it ?
Why are cloudy nights usually warmer than clear ones?
While at berkeley, melvin calvin used this radioisotope to decipher many of the complex processes of photosynthesis:
Explain about Barometer?
What are the characteristics of a musical sound?
1.when a diode has its maximum resistance? 2.is ohm's applicable for an ac circuit?