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If the focal length of a microscope is s...

If the focal length of a microscope is small , magnification is ……[ fill in the blank].

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CHHAYA PUBLICATION-OPTICAL INSTRUMENTS-Exercise (Very short Answer Type Questions)
  1. For a normal eye the least distance of distinct vision is …….. Fill in...

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  2. Vision of normal eye ranges from …… to ……… fill in the blanks.

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  3. How can the defect of astigmatism be corrected ?

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  4. The minimum distance of distinct vision for a person is 1m . What eye...

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  5. …… is the eye -defect which old people usually suffer from fill in th...

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  6. Cylindrical lens are used as a remedy for … fill in the blank.

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  7. For long -sightedness , …… lens should be used [fill in the blank ].

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  8. For short-sightedness , ….. Lens should be used fill in the the blank...

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  9. If the least distance of distinct vision is D and focal length of th...

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  10. If the length of the tube of a compound microscope is increased , the ...

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  11. If the focal length of a microscope is small , magnification is ……[ fi...

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  12. To increase magnification of a compound microscope , the objective and...

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  13. In what type of telescope is the final image erect ?

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  14. What is used for the objective of a reflecting telescope ?

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  15. Write the names of two ordinary types of the telescope.

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  16. Is the length of the instrument to be changed if the focal length of ...

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  17. In an astronomical telescope , the focal length and the aperture of th...

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  18. The final image is an astronomical telescope is …….and ……..with respec...

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  19. The final image in a terrestrial telescope is ……….and ……….with respect...

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  20. In Galileo's telescope , the objective is …..lens but the eyepiece is ...

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