Sure, here are the main formulas related to the chapter on light reflection and refraction:

1. **Law of Reflection**: The angle of incidence (i) is equal to the angle of reflection (r). Mathematically, it is represented as:
i = r

2. **Snell's Law (Law of Refraction)**: The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given color and for the given pair of media. This law is also known as the Snell's law of refraction. Mathematically, it is represented as:
n1*sin(i) = n2*sin(r)
where n1 and n2 are the refractive indices of the first and second medium respectively.

3. **Refractive Index**: The refractive index of a medium is the ratio of the speed of light in vacuum to the speed of light in the medium. It is represented as:
n = c/v
where c is the speed of light in vacuum and v is the speed of light in the medium.

4. **Critical Angle**: The angle of incidence for which the angle of refraction becomes 90 degrees is called the critical angle. It is represented as:
sin(c) = n2/n1
where c is the critical angle, and n1 and n2 are the refractive indices of the first and second medium respectively.

5. **Lens Formula**: The relationship between the object distance (u), the image distance (v), and the focal length (f) of the lens is given by the lens formula:
1/f = 1/v - 1/u

6. **Magnification**: The ratio of the height of the image to the height of the object is called magnification (m). It is also equal to the ratio of image distance to object distance. It is represented as:
m = -v/u = h'/h
where h' is the height of the image and h is the height of the object.

7. **Power of a Lens**: The power (P) of a lens is the reciprocal of its focal length. It is represented as:
P = 1/f
where f is the focal length of the lens.

These are the basic formulas related to light reflection and refraction.

Question

Sure, here are the main formulas related to the chapter on light reflection and refraction:

1. **Law of Reflection**: The angle of incidence (i) is equal to the angle of reflection (r). Mathematically, it is represented as:
   i = r

2. **Snell's Law (Law of Refraction)**: The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given color and for the given pair of media. This law is also known as the Snell's law of refraction. Mathematically, it is represented as:
   n1*sin(i) = n2*sin(r)
   where n1 and n2 are the refractive indices of the first and second medium respectively.

3. **Refractive Index**: The refractive index of a medium is the ratio of the speed of light in vacuum to the speed of light in the medium. It is represented as:
   n = c/v
   where c is the speed of light in vacuum and v is the speed of light in the medium.

4. **Critical Angle**: The angle of incidence for which the angle of refraction becomes 90 degrees is called the critical angle. It is represented as:
   sin(c) = n2/n1
   where c is the critical angle, and n1 and n2 are the refractive indices of the first and second medium respectively.

5. **Lens Formula**: The relationship between the object distance (u), the image distance (v), and the focal length (f) of the lens is given by the lens formula:
   1/f = 1/v - 1/u

6. **Magnification**: The ratio of the height of the image to the height of the object is called magnification (m). It is also equal to the ratio of image distance to object distance. It is represented as:
   m = -v/u = h'/h
   where h' is the height of the image and h is the height of the object.

7. **Power of a Lens**: The power (P) of a lens is the reciprocal of its focal length. It is represented as:
   P = 1/f
   where f is the focal length of the lens.

These are the basic formulas related to light reflection and refraction.

Knowee AI · Accepted Answer