Question

Fill in the Blanks
1. There are ………………….. types of spherical mirrors.
2. Changing of left side of an object to right side of image is called …………………..
3. ………………….. lens is also known as a magnifying glass.
4. The change in the direction of light by a mirror is called ………………….. of light.
5. A ………………….. is a curved transparent or translucent device that causes rays to either converge or diverge.
6. Convex lenses are ………………….. in the middle than at the edges whereas concave lenses are in the middle than at the edges.
7. A prism splits light into ………………….. colours.
8. The inner surface of a steel spoon acts as a ………………….. mirror. [NCERT Exemplar]
9. The outer surface of a flat steel plate acts as a ………………….. mirror.
10. The outer shining surface of a round bottom steel bowl acts as a ………………….. mirror.
11. The inner surface of the reflector of a torch acts as a ………………….. mirror. [NCERT Exemplar]

Answer 1

Answer:

1. two

2. Lateral inversion

3. Convex

4. reflection

5. lens

6. thicker

7. seven

8. concave

9. convex

10. convex

11. concave

Answer 2

Answer:

1. two

2. Lateral inversion

3. Convex

4. reflection

5. lens

6. thicker

7. seven

8. concave

9. convex

10. convex

11. concave

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