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प्रश्न
Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
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उत्तर १
If English letters like A, H, I, M, O, T, U, V, W, X and Y are placed in front of a mirror, then their images look exactly like the letters. These letters are vertically symmetrical. If we divide these letters from the middle, then their right and left parts will look the same.
उत्तर २
The letters of the English alphabet give exactly the same image in a plane mirror like the letter itself:
A, H, I, M, O, T, U, V, W, X, Y
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संबंधित प्रश्न
What type of image is formed:
- in a plane mirror?
- on a cinema screen?
A ray of light travels from a denser medium to a rarer medium. How will it bend?
What do you mean by the term dispersion?
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
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 5 cm high forms a virtual image of 1.25 cm high, when placed in front of a convex mirror at a distance of 24 cm. Calculate:
- the position of the image
- the focal length of the convex mirror.
AB is the object, A'B' is the image, and MM' is the position of the mirror. Complete the ray diagram showing the formation of the image and find the focal length of the mirror.
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°
