Refractive index of glass is 1.5. Find the wavelength of a beam of light with a

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Question
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.
Options
A. 4 ?m
B. 3 ?m
C. 2 ?m
D. 1 ?m

Correct Answer

2 ?m

Explanation

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

$Refractive index of glass is 1.5. Find the wavelength of a beam of light with a frequency of 1014 Hz$

8. In a single phase full wave regulator, the firing angles in the positive and negative half cycles are generally
Options
A. equal
B. different
C. equal or different
D. different but sometimes equal

9. The real part of complex dielectric constant and tan? for a dielectric are 2.1 and 5 x 10^-4 at 100 Hz respectively. The imaginary part of dielectric constant at 100 Hz is
Options
A. 1.05 x 10^-3
B. 2.1 x 10^-3
C. 5 x 10^-3
D. 1.05 x 10^-2

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