Explain the characteristics of dead stars?
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What is transverse wave motion?
What is a Coal ?
WHAT TI THE REASON FOR THE NOISE PRODUCED IN THE TRANSFORMER?
Explain what is the ray of light?
Explain the Mortar ?
Explain the Vapour pressure ?
Distinguish between optical and acoustic resonance.
Explain Conductors ?
What is white body ?
Do radio-waves go in straight line ?
Explain one advantage of a scanning electron microscope over a transmission electron microscope?
What is Alum?