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प्रश्न
उत्तर
Height of object = 5 cm.
Distance of object = 30 cm.
Focal length of mirror = 40 cm.
Image is virtual, erect, and magnified.
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संबंधित प्रश्न
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).
What is a virtual image?
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
State the position of object for which the image formed by a concave mirror is of same size.
Name the kind of mirror used to obtain :
A real and enlarged image
Name the kind of mirror used to obtain:
A virtual and diminished image
Define the term Aperture.
Draw a ray diagram to show that a convex mirror has a wider field of view.
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
