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प्रश्न
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
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उत्तर
Incident ray: The light ray striking a reflecting surface is called the incident ray.
संबंधित प्रश्न
A small object is placed 150 mm away from a diverging lens of focal length 100 mm.
(i) Copy the figure below and draw rays to show how an image is formed by the lens.
Figure
(ii) Calculate the distance of the image from the lens by using the lens formula.
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
How is the focal length of a spherical mirror related to its radius
An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the sun. Select the correct statement about the device.
(A) Convex mirror of focal length 12 cm
(B) Convex lens of focal length 24 cm
(C) Concave mirror of focal length 24 cm
(D) Convex lens of focal length 12 cm
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
Define the following term in relation to concave mirror.
Pole
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
Which of the following has curved reflecting surface?
