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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
The diagram below in Figure, shows a convex mirror. C is its centre of curvature and F is its focus. (i) Draw two rays from A and hence locate the position of image of object OA. Label the image IB. (ii) State three characteristics of the image.
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
Select the correct option:
A concave mirror is made by cutting a portion of a hollow glass sphere of radius 30 cm. The focal length of the concave mirror is:
Define the term Aperture.
