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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
- One cannot see through fog, because:
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- The sky would appear red instead of blue,if
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- What is the cause of formation of a rainbow?
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- Which fo the following statement is correct? (i)Line spectra is chrara...
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- Fraunhofer spectrum is a
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- In which one of the following regions of teh electromagnetic spectrm w...
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- In case of lens,which of the following quantities depend on the wavele...
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- A converging achromat lens is to be made by placeing two lenese in con...
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- A combination is made of two lenses of focal lengths f and f' and disp...
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- When we see an object,the image formed on the retina is
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- The focal length of the normal eye-lens is approximaterly
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- The distances of the human eye-lens from the retina is x.For a normal ...
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- Why is a normal eye not able to see clearly the objects placed closer ...
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- When we view objects lying at differnt distances from the eye,which fo...
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- Draw a ray diagram to show the image formation by a simple microscope....
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- If the least distance of distinct vision is 25 cm,then a convex lens o...
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- The convex lenses of focal lengths 0.3 m and 0.05 m are used to make a...
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- An observer looks at a tree of height 15 m with a telescope of magnify...
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- Magnifying power of a telescope is m.If the focal length of the eye-pi...
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- A fly is sitting on the objective of a telescope pointed to the moon.W...
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