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BINA LIBRARY-Optics-I-EXERCISE
- Can a concave lens produce a real image?
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- Why has a lens two focal points but a mirror only one?
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- What is meant by power of a lens? What is its unit?
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- If a thin lens is dipped in water, does its focal length change?
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- Define principal axis of spherical mirror .
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- Is the focal length of a lens the same for lights of all colors ?
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- What is dispersion of light?
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- Which colour of white light suffers maximum deviation in dispersion?
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- Which colour of white light travels with least speed in a transparent ...
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- What is the nature of the final image in an astronomical telescope?
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- What type of lenses are used in a compound microscope?
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- what is optical centre?
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- What is the fundamental difference between a microscope and a telescop...
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- What is the nature of the final image in an astronomical telescope?
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- Why an astronomical telescope is not suitable for viewing earthly obje...
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- How many lenses are there in a terrestrial telescope?
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- By what length is the tube of a terrestrial telescope longer than the ...
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- Define the magnifying power of a telescope.
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- Define focus.
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- Draw a lebelled ray diagram to show the formation of image using a con...
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