Question

(2) A concave lens of focal length 15 cm forms an image at 10 cm from the lens. How far is the
object placed from the lens? Draw the ray diagram.
(3) Define angle of reflection, angle of refraction, normal. Also write the laws of reflection
(4) Draw the four principal rays used for image formation by concave mirror.​

Answer 1

Answer:

1. Tomato
2. Potato
3. Garlic
4. Joker

Answer 2

Answer:

this is your ans

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