how many neutrons and how many protons are present in a single deuterium nucleus?
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the hardest substance available on earth
X-Ray is avoided by using ?
What is astrophysics?
Define Newton's third law of motion?
Why is the apparent altitude of a star increased by reflection in atmosphere ?
what is ngative current
What is reverberation?
list and describe the three types of transformer?
Mention the applications of electron microscope. : quantum physics
can we use kgs instead of kg? why?
why glass is more elastic than rubber?
what happens when an object travels in the speed of light hits another object?