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ruslelena [56]
3 years ago
12

What are the frequencies of EM spectrum

Physics
1 answer:
kap26 [50]3 years ago
3 0

The EM spectrum has no limits.  Any frequency you can imagine
is the frequency of some electromagnetic radiation somewhere.


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An iron rod and a copper rod of equal length are each held by hand at one end, with the other end in the flame from a Bunsen bur
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Iron has a higher heat capacity than copper

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6 0
3 years ago
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What is the width of a slit for which the first minimum is at 45° when the slit is illuminated by a helium-neon laser (λ = 633 n
bekas [8.4K]

Answer:

d = 895 nm

Explanation:

Given:

- Wavelength of light λ = 633 nm

- Angle Q is between central order = 45 degrees

Find:

What is the width of a slit?

Solution:

- The relationship between and wavelength and the order of fringes with respect to slit size d is given by Young's experiment as follows:

                                    sin (Q) = m*λ / d

- Use the above result and compute for the grating d for m =1,

                                     d = λ / sin(Q)

                                     d = 633*10^-9 / sin(45)

                                    d = 0.89 um

-  The width of slit is d = 895 nm

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