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प्रश्न
When does a ray of light falling on a lens pass through it undeviated?
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उत्तर
A ray of light falling on the lens passes through it undeviated when it passes through the optical centre.
संबंधित प्रश्न
Explain optical centre of a lens with the help of proper diagram(s).
A ray of light after refraction through a lens emerges parallel to the principal axis of the lens. The incident ray either passes through ______.
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ln fig, , a real image of a point objert O is formed, Which of the following statements is true about each of the arrangements?
(i) The object is at the principle focus of the lens
(ii) The focal length of the lens is 17 cm
(iii) lf the mirror is moved so that it is 6 cm from the lens image will also move
Complete the following diagram and state what happens to the ray of light after refraction through the lens.
Complete the following diagram and state what happens to the ray of light after refraction through the lens.
