1. We can see things around us only when the light reflected by them reaches our eyes. 2. Light is a form of energy and it travels in a straight line.

Question

True of False - If false give the correct statement

1.We can see things around us only when the light reflected by them reaches our eyes.

2. Light is a form of energy and it travels in a straight line.

3. The periscope is an optical device with a polished surface that reflects the light falling on it.

4. Curved mirrors have surfaces that are spherical, cylindrical, parabolic and ellipsoid.

5. Curved mirrors form the perfect image of an object.

6. Curved mirrors produce images that are either enlarged or diminished.

7. A thin layer of molten aluminium or silver is used for coating glass plates that  will then become mirrors.

8. The most common example of a convex mirror is than make - up mirror.

Answer 1

1. True.

2. True.

3. False - The mirror is an optical device with a polished surface that reflects the light falling on it.

4. True

5. False - plane mirrors form the perfect image of an object.

6. True

7. True

8. False - The most common example of a concave mirror is the make - up mirror