What is meant by geo- magnetism ?
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What affect does electricity have on soil?
Explain what is the difference between diffraction and interference?
why ac is attractive and dc is repulsive?
Explain the universal law of universal gravitation?
What is the opaque?
Why does fountain pen filler drew up ink ?
Explain the three particles that make up an atom?
What is white body ?
Explain the difference between dynamic strain aging and strain aging?
Distinguish between optical and acoustic resonance.
Why are prisms used in binoculars ?
What is ntu in thermodynamics?