Question

D. Correct the following statements

1. Gases expand in area on heating.


2. In evaporation gaseous state is formed from all parts of the liquid.


3. A ray which bounces off the surface of a mirror is called incident ray.


4. A convex mirror can be used as a shaving glass as it forms virtual and

enlarged image.


5. Image in mirrors are formed by diffused reflection.


6. Reflecting periscope is used by the barbers to show the back of head.


7. A compressed spring of a toy gun possesses kinetic energy​

Answer 1

Answer:

1. gases expand in volume on heating

2. In evaporation, gaseous state is formed from the first layer of molecules of the liquid

3. A ray which bounces off the surface of a mirror is called reflected ray

4. A concave mirror can be used for shaving glass as it forms a virtual and enlarged image

5. Image in mirrors are formed by regular reflection

6. Reflecting Kaleidoscope is used by the barbers to show the back of the hair

7. A compressed spring of a toy gun possesses potential energy