1. -1 points CJ10 26.P003 My Notes Ask Your The refractive indices of materials

Question

1. -1 points CJ10 26.P003 My Notes Ask Your The refractive indices of materials A and B have a ratio of na/ng = 1.21. The speed of light in material A is 1.45 x 108 m/s. What is the speed of light in material B m/s Additional Materials Sedon 26 1 2.1 points CJ10 26 P0O6 My Notes Ask Your Light has a wavelength of 480.0 nm and a frequency of 4.29 1014 Hz when traveling through a certain substance. What substance from Table 26.1 could this be? O Diamond O Glass, crown o Ice (0° C) OSodium chloride o Quartz, fused O Benzene O Carbon disulfide O Carbon tetrachloride O Ethyl alcohol Water Additional Materials Section 26. .1 points CJ10 26P OOB My Notes Ask Your A flat sheet of crown glass has a thickness of 3.6 cm. It is on top of a flat sheet of diamond that has a thickness of 2.1 cm. Light strikes the crown glass perpendicularly and travels through it and then through the diamond In the time it takes the light to travel through the two sheets, how far would it have traveled in a vacuum? cm

Explanation / Answer

Solving 1st question

We know,more is refractive index,less will be speed of light in the medium

So

n1/n2=v2/v1

1.21=vB/1.48*10^8

We got vB=1.79*10^8 m/s

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