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There are two types of optical instruments: Microscopes and Telescopes. Microscopes are used to…
There are two types of optical instruments: Microscopes and Telescopes. Microscopes are used to magnify very tiny objects whereas telescopes are used to study distant objects. Both of them deploy convex lenses. In his telescope, Newton used a large parabolic mirror to collect light from the stars and reduce aberrations.
Read the passage given below and answer the questions that follow.
(i)
Rohit observed the launch of Chandrayan 3 with the help of an optical instrument. Name the instrument used by him.
(ii)
State any one advantage of a reflecting telescope over a refracting telescope.
(iii)
Which instrument is used to study the structure of a virus?
(iv)
What is the ability of an optical instrument to form enlarged images called?
(v)
What is the difference between a compound microscope and an astronomical telescope (refracting type), as far as their lenses are concerned?
Answer
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From ISC 2024 Physics Paper 1, question 20.