refraction of light

The refractive indices of four substances P, Q, R, S are 1.50, 1.36, 1.77 and 1.31 respectively. The speed of light is the maximum in which substance?

• P

• Q

• R

• S

Tags

NGSS.HS-PS4-1

Which of the following diagrams shows the ray of light refracted correctly?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS4-3

Light enters from air into diamond which has a refractive index of 2.42. Calculate the speed of light in diamond. Speed of light in air is 3 x 10^8 m/s.

• 1.33 x 10^8 m/s

• 2.25 x 10^8 m/s

• 0.806 x 10^8 m/s

• 1.24 x10^8 m/s

Tags

NGSS.HS-PS4-1

A ray of light passes from glass into air. The angle of refraction will be:

• equal to angle of incidence

• greater than angle of incidence

• smaller than angle of incidence

• 45

A ray of light passes from a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of:

• 0

• 45

• 90

• 120

The refractive index of water, sulphuric acid, glass and carbon disulphide are 1.33, 1.43, 1.53 and 1.63 respectively. Light travels slowest in

• sulphuric acid

• water

• glass

• carbon disulphide

The speed of light in substance X is 1.25 x 10^8 m/s and that in air is 3 x 10^8 m/s. The refractive index of this substance will be:

• 2.4

• 0.4

• 4.2

• 3.75

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

The refractive indices of 4 materials P, Q, R and S are 1.33, 1.43, 1.71 and 1.52 respectively. When light passes from air into these materials, they refract the maximum in

• P

• Q

• R

• S

The refractive index of material X is 1.42 and that of material Y is 1.56. Light travels faster in:

• Material X

• Material Y

• They travel at the same speed

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5