EASY
10th ICSE
IMPORTANT
Earn 100

Draw three types of concave lenses and label them.

Important Questions on Refraction Through a Lens

EASY
10th ICSE
IMPORTANT
Name the convex lens whose one surface is plane surface. Draw this lens.
MEDIUM
10th ICSE
IMPORTANT
Explain the lens action assuming it as a combination of frustum of prisms.
MEDIUM
10th ICSE
IMPORTANT

Complete the following diagrams and locate the position of the focus of lens in each case.

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MEDIUM
10th ICSE
IMPORTANT

Complete the following ray diagrams and locate the image position.

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EASY
10th ICSE
IMPORTANT
Why is a convex lens is also known as converging lens?
EASY
10th ICSE
IMPORTANT
Why is a concave lens also known as diverging lens?
EASY
10th ICSE
IMPORTANT
Define following terms in reference to a lens with a proper diagram: principal axis, optical centre, radius of curvature and centre of curvature.
EASY
10th ICSE
IMPORTANT
Draw diagrams to show the first and second focus of a convex lens.