Law of Reflection and Refraction of Light

The diagram shows a ray of light going from medium A into medium B. Which one of the following statements cannot be correct?

• A is air and B is glass.

• A is water and B is vacuum.

• A is water and B is air.

• A is glass and B is vacuum.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

A ray of light is shone on a rectangular glass block as shown. Identify A, B and C.

• A = Refracted ray, B = Incident ray, C = Normal

• A = Incident ray, B = Refracted ray, C = Normal

• A = Normal, B = Refracted ray, C = Incident ray

• A = Refracted ray, B = Angle of incidence, C = Angle of refraction

When a drinking straw is placed in a container of water so that it is partly submerged, it appears bent because of

• apparent depth

• Snell's Law

• Refraction

• lateral inversion

The diagram shows a ray of light AB striking the interface of medium X and medium Y. BC is the refracted ray. Which one of the following statements is correct?

• Medium X is optically less dense than Y and ray BC travels faster than AB.

• Medium X is optically denser than Y and ray BC travels slower than AB.

• Medium X is optically denser than Y and ray BC travels faster than AB.

• Medium X is optically less dense than Y and ray BC travels slower than AB.

When light passes from one medium into another, refraction occurs. This is because of

• reflection of light.

• a change in color of the light.

• a change in velocity of the light.

• the absorption of light.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A light ray does not bend at a boundary between two media of different optical densities if its angle of incidence is

• 180^o

• 45^o

• 0^o

• 90^o

The quantity which does not changes during refraction is

• direction

• speed

• frequency

• wavelength

Tags

NGSS.HS-PS4-1

The ratio of sin (x °) of the angle of incidence to sin (x °) of the angle of refraction is

• Gravitational law

• Reflection law

• Snell's law

• refraction law

The best definition of refraction is ____.

• passing through a boundary

• changing direction when crossing a boundary

• changing speed at a boundary

• bouncing off a boundary

Tags

NGSS.MS-PS4-2

When light travels from air into water, the light bends ____________.

• towards the normal line

• away the normal line

• perpendicular to the normal line

• in an odd shape

Tags

NGSS.MS-PS4-2