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What is negative meniscus lens?

Important Questions on Light

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Science>Physics>Light>Lens
Write the role of lenses in our daily life.
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Science>Physics>Light>Lens
Write the two differences between convex and concave lens.
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Science>Physics>Light>Lens
Which type of lens will you apply for reading small letters of a dictionary?
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Science>Physics>Light>Lens
A convex lens has a focal length of 15 cm. At what distance should an object be placed in front of the lens to get a real image of the same size of the object?
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Science>Physics>Light>Lens
What is a lens? Name the two types of lens.
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Science>Physics>Light>Lens

What are the types of spherical lenses? Describe the principal focus, aperture and the optical centre of a spherical lens.

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Science>Physics>Light>Lens

Why is a convex lens called a convergent lens?

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Science>Physics>Light>Lens
The central point of a lens is known as:
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Science>Physics>Light>Lens
Define the focal length of spherical mirror.
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Science>Physics>Light>Lens
Define the principal focus of a convex lens.
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Science>Physics>Light>Lens

The following diagram shows the use of an optical device to perform an experiment of light.

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As per the arrangement shown, the optical device is likely to be a _____.

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Science>Physics>Light>Lens
If the lens is placed in water instead of air, how does its focal length change? 
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Science>Physics>Light>Lens
A concave lens is a converging lens.
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Science>Physics>Light>Lens

What is meant by the optical centre of a convex lens?

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Science>Physics>Light>Lens
Write any three differences between a convex lens and a concave lens.
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Science>Physics>Light>Lens
Which lens, thick or thin has greater focal length?
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Science>Physics>Light>Lens
Which type of lens is used in making telescopes-converging or diverging?
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Science>Physics>Light>Lens
Name the piece of transparent materials which have one or two spherical surfaces.
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Science>Physics>Light>Lens
Which lens is used for correcting the long-sightedness?
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Science>Physics>Light>Lens
With the help of a ray diagram, explain the following terms: optical centre of a convex lens.