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~—very Short Extra Questions and, Answers, , 1. What type of mirror is used as a side view, , mirror in a scooter?, , Answer: Convex mirror., , 3. Which type of mirror can form a real image?, Answer: Concave mirror can form a real image., , 4. Which type of lens forms always a virtual, , image?, , Answer: Concave lens forms always a virtual, , image.

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6. What are the two types of spherical mirror?, , Answer: The two types of spherical mirror are, , concave and convex mirrors., , 7. What is real image?, , Answer: An image which can be obtained on a, , screen is called a real image., 8. Write some uses of lenses., , Answer: Lenses are widely used in spectacles,, , telescopes and microscopes., 9. What is convex mirror?, , Answer: If the reflecting surface is convex, then, , it is a convex mirror.

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Short Extra Questions and Answers, , 1. When does rainbow appear in the sky?, , Answer: Rainbow appears usually after the rain, when the sun is low in the sky. The rainbow, is seen as a large arc in the sky with many, , colours.