Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion

Discussion Forum : Electromagnetic Field Theory - Section 1 (Q.No. 3)
3.
Refractive index of glass is 1.5. Find the wavelength of a beam of light with a frequency of 1014 Hz in glass. Assume velocity of light is 3 x 108 m/sec in vacuum.
4 μm
3 μm
2 μm
1 μm
Answer: Option
Explanation:

Given, μ = 1.6, f = 1014 Hz, v = 3 x 108 m/sec.

Discussion:
6 comments Page 1 of 1.

Pradeep Rathod said:   4 years ago
C/f = 3x10^8/10^14 = 3um/1.5 = 2μm.

Sunni said:   7 years ago
No, answer is 2 that is print mistake 1.5 not 1.6.

Suraj Rathod said:   7 years ago
Answer is 1.5 um.

Shree said:   7 years ago
Refractive index is mentioned as 1.5 not 1.6.

It will get another answer not 2 micrometre.

Bittu said:   8 years ago
Here refractive index given -1.5.

Then why 1.6 considered?

PRACHI said:   8 years ago
We can not consider the value of 1.6?

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