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  1. shape of an object
  2. distance of the object from source of light
  3. position of the object w.r.t source of light
  4. colour of the object
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1 Answers

Option 4 : colour of the object

Explanation:-

Mirror:

  • Spherical mirrors are polished surfaces that act as reflecting materials.
  • They are of two kinds convex and concave.
  • The concave mirror is converging in nature.
  • The convex mirror is diverging in nature.

Lenses:

  • Lenses act as both the reflecting surface and a medium of refraction.
  • There are two kinds of lenses- concave and convex.
  • The concave lens is diverging in nature.
  • The convex lens is converging in nature.

Reflection: The phenomenon of bouncing back of visible light when it strikes a plane surface is called reflection.

Laws of reflection:​

  • The incident ray, the reflected ray and the normal at the point of the incident all lie in the same plane.
  • The angle of incident is equal to the angle of reflection.

Refraction: The bending of the light rays when it enters from a denser to rarer or rarer to denser medium is called refraction.

Laws of refraction:

  • The incident ray, the refracted ray and the normal at the point of the incident all lie in the same plane.
  • The sine of the angle of incident is equal to the sine of the angle of refraction. (snell's law)

Shadow:- It is the area where the light can't reach is called shadow

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