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प्रश्न
Complete the following sentence:
All the distances are measured from the .......... of a spherical mirror.
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उत्तर
All distances are measured from the pole of a spherical mirror.
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संबंधित प्रश्न
What do you mean by the term dispersion?
A student obtained on a screen the sharp image of a candle flame placed at the farther end of laboratory table using a concave mirror. For getting better value of focal length of the mirror, the teacher suggested to him to focus the sun. What should the student do?
(A) Should move the mirror away from the screen.
(B) Should move the mirror towards the screen.
(C) Should move the mirror and screen both towards the sun.
(D) Should move only the screen towards the sun.
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
State whether the image in part (a) is real or virtual?
A real and enlarged image can be obtained by using a
Define the following term:
spherical mirror
Define the following term:
concave mirror
What is the relationship between the focal length and radius of curvature?
In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
Draw a ray diagram to show that a convex mirror has a wider field of view.
The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.
The spherical mirror with a reflecting surface curved inward is called
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
The image formed in a plane mirror is always inverted.
