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प्रश्न
Copy and complete the following ray diagram.
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उत्तर
संबंधित प्रश्न
The speed of light in air is 3 × 108 m s-1. Calculate the speed of light in glass. The refractive index of glass is 1.5
A lens forms an erect, magnified and virtual image of an object.Draw a ray diagram to show the formation of image.
A lens forms an erect, magnified, and virtual image of an object. Name the device which uses this principle.
Define magnifying power of a simple microscope. How can it be increased?
The focal length of a convex lens is 25 cm. At what distance from the optical centre of the lens an object be placed to obtain a virtual image of twice the size?
What are conjugate foci?
Name the lens used as a magnifying glass.
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
Copy and complete the following ray diagram.
An erect, magnified, and a virtual image is formed when an object is placed between the optical centre and principal focus of a lens.
(i) Name the lens.
(ii) Draw a ray diagram to show the formation of the image with the above-stated characteristics.
