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9th Standard English Medium Science Subject Light Book Back 2 Mark Questions with Solution Part - I Question Bank Software Jun-15 , 2021

QB365 provides detailed and simple solution for every Book back Questions in class 9 Science Subject. It will helps to get more idea about question pattern in every book back questions with solution.

9th Standard English Medium Science Subject Light Book Back 2 Mark Questions with Solution Part - I

9th Standard English Medium Science Subject Light Book Back 2 Mark Questions with Solution Part - I

9th Standard

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Science

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 2 = 10

  1. According to cartesion sign convention, which mirror and which lens has negative focal length?

  2. Name the mirror(s) that can give (i) an erect and enlarged image, (ii) same sized, inverted image

  3. If an object is placed at the focus of a concave mirror, where is the image formed?

  4. Why does a ray of light bend when it travels from one medium to another?

  5. Concave mirrors are used by dentists to examine teeth. Why?

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