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Which of the two diverges a beam of para...

Which of the two diverges a beam of parallel rays of light : convex lens or concave lens ?

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A parallel beam of monochromatic light falls on a combination of a convex lens and a concave lens of focal lengths 15 cm and 5 cm respectively. What is the distance between the two lenses to obtain a parallel beam of light from the concave lens ?

What is a lens? Distinguish between a convex lens and a concave lens. Which of the two is a converging lens: convex and lens or concave lens?

A convex lens is a diverging lens.

When does a convex lens behave as a concave lens ?

When does a convex lens behave as a concave lens ?

LAKHMIR SINGH & MANJIT KAUR-LIGHT-EXERCISEE
  1. What is the other name of a diverging lens ?

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  2. What is the other name of a converging lens ?

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  3. Which of the two diverges a beam of parallel rays of light : convex le...

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  4. Name the lens which can concentrate sun's rays to a point and burn a h...

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  5. Which of the mirrors is converging: concave or convex?

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  6. Where should an object be placed in order of to use a convex lens as a...

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  7. If the image formed by a lens is always virtual, erect and smaller tha...

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  8. Which type of lens can form real and inverted images, as well as virtu...

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  9. Name the device which is used to split white light into seven colours.

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  10. What acts as tiny prisms in the formation of a rainbow ?

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  11. Name the process which is involved in the formation of a rainbow.

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  12. What can you demonstrate by rotating Newton's colour disc rapidly ?

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  13. Fill in the following blanks with suitable words : Light travels in...

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  14. Fill in the following blanks with suitable words : The change in di...

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  15. Fill in the following blanks with suitable words : An image that ca...

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  16. Fill in the following blanks with suitable words : An image that can...

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  17. Fill in the following blanks with suitable words : An image formed ...

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  18. Fill in the following blanks with suitable words : Image formed by ...

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  19. Fill in the following blanks with suitable words : A minor can for...

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  20. Fill in the following blanks with suitable words : A Convex lenses ...

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