EASY
Earn 100

Name the different types of lens.

Important Questions on Light

EASY
Science>Physics>Light>Lens
Which lens is used for correcting the long-sightedness?
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Science>Physics>Light>Lens
Convex lens has _____.
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Science>Physics>Light>Lens
Look at the figure given alongside and pick the correct option.
Question Image
The black paper after a few minutes _____.
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Science>Physics>Light>Lens
What do we call the lens which is thicker in the middle and thinner at the edges?
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Science>Physics>Light>Lens
A concave lens always produces a _____.
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Science>Physics>Light>Lens
Mention two uses of the convex lens.
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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.
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Science>Physics>Light>Lens
A lens always forms a diminished, erect and virtual image. Identify the nature of the lens.
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Science>Physics>Light>Lens
A man sees a magnified image of a closely kept object by holding a simple 'clear glass' device in his hand. The device is likely to be a _____.
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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
What happens to the rays falling parallel to the axis on a concave lens?
HARD
Science>Physics>Light>Lens
With the help of a ray diagram, explain the following terms: focal length of a convex lens.
EASY
Science>Physics>Light>Lens
Nitika's grandmother is not able to see distant objects properly. Nitika takes her to the nearby eye specialist. What value can you learn from Nitika?
MEDIUM
Science>Physics>Light>Lens
Which type of lens is used in making telescopes-converging or diverging?
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Science>Physics>Light>Lens
Choose the odd-one out:
EASY
Science>Physics>Light>Lens
Write two uses of the concave lens.
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Science>Physics>Light>Lens
A lens is thicker at the edges and thinner in the middle. Can it burn pieces of paper by focussing sunlight?
EASY
Science>Physics>Light>Lens

Define the terms converging and diverging lenses.

MEDIUM
Science>Physics>Light>Lens
Roy was looking at a paper through a magnifying glass in sunlight. After some time, the paper started burning. Can you explain what happened?
EASY
Science>Physics>Light>Lens
Write the differences between a convex and a concave lens.