Physics

Q251

The sun is made up of 99.9% of ________________ and ______________?

Q252

In very low temperature, which of the following will freeze last?

Q253

A three-dimensional image is obtained by________________?

Q254

If electron in hydrogen atom jumps from lower to higher orbit then which quantity will decrease?

Q255

Reverse process of photoelectric effect is_______________?

Q258

A person climbing a hill bends forward to ——-.

Q259

The especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?

Q260

This in-between phase of stellar nurseries and star formation in stellar evolution is when the gathered dust is still condensing to form a star.

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