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संबंधित प्रश्न
One half of a convex lens of focal length 10 cm is covered with a black paper. Can such a lens produce an image of a complete object placed at a distance of 30 cm from the lens? Draw a ray diagram to justify your answer. A 4 cm tall object is placed perpendicular to its principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 15 cm. Find the nature, position and the size of the image.
A student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen (S) as shown below in the diagram. Select the correct statement about the device (X).
Define the following term in the context of spherical mirrors:- Pole
Explain the following term related to spherical lenses:- principal focus
An image formed by a ______ mirror is always of the same size as that of the object.
Name the spherical mirror which can produce a real and diminished image of an object.
Discuss the position and nature of image formed by a concave mirror when an object is moved from infinity towards the pole of mirror.
A concave mirror forms a virtual image of size twice that of the object placed at a distance 5 cm from it. Find:
- the focal length of the mirror
- position of image
Define the following term in relation to concave mirror.
Pole
Define the term Aperture.
