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#Question id: 20037


Velocity of electron in the first orbit of H-atom is compared to that of velocity of light is approximately

#XL - P Chemistry
  1. 1/1000th
  2. 1/137th
  3. 1/10th
  4. same

Answer:- Option(s): 2


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#Question id: 8288

#XL - S Microbiology

Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of ________.

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#Question id: 3060

#XL - S Microbiology

A bacteria having doubling time of 1 minute, fills a cylindrical vessel completely in 3 hours. How much time will it take to fill half of the vessel?

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#Question id: 11406

#XL - T Zoology

Which of the following is true for a critically endangered species?

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#Question id: 31577

#XL - S Microbiology

What forms the lipid bilayer in bacterial plasma membranes?

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#Question id: 10921

#XL - R Botany

The mechanism of phloem translocation in angiosperms is best explained by which method?

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