refraction of light

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

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NGSS.HS-PS4-1

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond
• water
• flint glass
• barium glass

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NGSS.HS-PS4-1

What is the speed of light in a material that has an index of refraction of 1.88?

• 3.0 x 10⁸ m/s

• 1.88 x 10⁸ m/s

• 1.6 x 10⁸ m/s

• 5.64 x 10⁸ m/s

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NGSS.HS-PS4-1

If a material has an index of refraction of 2.3, how fast will light travel through that material?

• 2.3 x 10⁸ m/s

• 6.9 x 10⁸ m/s

• 3.0 x 10⁸ m/s

• 1.3 x 10⁸ m/s

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NGSS.HS-PS4-1

If light travels through a piece of glass at 2.1 x 10⁸ m/s, what is the index of refraction of the glass?

• 1.14

• 1.43

• 2.10

• 6.3

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NGSS.HS-PS4-1

1. Light travels through a liquid at 1.4x10⁸ m/s. What is the liquid’s index of refraction?

• 2.14

• 2.50

• 1.78

• 3.31

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NGSS.HS-PS4-1

when light travels from rarer medium to denser medium it bends

• away from the normal

• towards the normal

• doesnt change direction

• travels at 180⁰

what is absolute refractive index

• when one medium is vacuum

• when one medium is water and other is glass

• when one medium is glass and air

• none

when light travels at 90⁰ it doesnt bend or refract

• yes

• no

Sin i/ sin r= constant this law is also called as?

• newtons law

• refraction law 3

• snells law

• gravitational law