Best Study Material for SSC CGL Exam
Table of contents |
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Optical Instruments |
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Astronomical Telescope |
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Scattering of Light |
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Interference and Diffraction of Light (Wave) |
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With the application of generalised rules of optics optical instruments are developed and used.
Magnifying Power
The magnifying power of a compound microscope in two cases.
The magnifying power of an astronomical telescope in two cases are
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Test: Light
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It is a device consists of three plane rectangular mirrors of equal lengths and breadths inclined at an angle of 60° enclosed in a cylindrical tube. The reflecting surfaces of the mirrors are towards inward. Glass pieces of bright colours are placed in it. When we see through its one end, coloured symmetrical pattern is obtained which changes continuously on rotating the tube.
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1. What are some common types of optical instruments used in astronomy? | ![]() |
2. How does the scattering of light affect our ability to observe celestial objects through telescopes? | ![]() |
3. What is interference and diffraction of light, and how do they impact the performance of optical instruments? | ![]() |
4. How do astronomers use wave light to study distant celestial objects? | ![]() |
5. Can optical instruments be used to study objects beyond our solar system? | ![]() |