Fill in the Blanks
1. Light shows the phenomena of reflection, refraction and ………. .
2. The speed of light in vacuum is ………. .
3. Power of’ a lens is the ………. of its focal length.
4. The SI unit of power is ………. .
5. A ………. lens will always give a virtual, erect and diminished image, irrespective of the position of the object.
6. A positive sign in the value of magnification indicates that the image is ………. .
7. A ………. mirror is used as a head mirror by the doctors to concentrate light on the body parts to be examined.
8. No matter how far you stand from a spherical mirror, your image appears erect. The mirror may be ………. .
Fill in the Blanks
1. Light shows the phenomena of reflection, refraction and ………. .
2. The speed of light in vacuum is ………. .
3. Power of’ a lens is the ………. of its focal length.
4. The SI unit of power is ………. .
5. A ………. lens will always give a virtual, erect and diminished image, irrespective of the position of the object.
6. A positive sign in the value of magnification indicates that the image is ………. .
7. A ………. mirror is used as a head mirror by the doctors to concentrate light on the body parts to be examined.
8. No matter how far you stand from a spherical mirror, your image appears erect. The mirror may be ………. .
Harshit Singh , 3 Years ago
Grade 12th pass
