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संबंधित प्रश्न
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
What type of image is formed:
on a cinema screen?
What kind of mirror is required for obtaining a virtual image of the same size as the object?
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
The magnification for a mirror is -3. How are u and v related?
What is the relationship between the focal length and radius of curvature?
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
The image formed in a plane mirror is always inverted.
