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3 years ago

The shortest wavelength within the visible spectrum is _______ light.

Physics

2 answers:

Semmy [17]3 years ago

8 0

Violet : The shortest wavelengths are perceived as violet and the longest wavelengths are perceived as red.

Sindrei [870]3 years ago

7 0

Answer:

Aren't the choices these?

A. violet ,B. red , C. orange , D. blue

Then it would be A. violet, ur welcome:)

MARK BRAINLIEST

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Light of wavelength 480 nm illuminates a double slit, and the interference pattern is observed on a screen. At the position of t

vova2212 [387]

Answer:

BC =980nm

Explanation:

Given wavelength =490nm

m=2

Required to find (OB - OC) = BC (more distant slit - nearest slit ) = dsin theta

We have dsin theta = m*wavelength

or BC = m* wavelength = 2*490nm

= 980nm = 98.000A

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3 years ago

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3 years ago

A short-wave radio antenna is supported by two guy wires, 155 ft and 175 ft long. Each wire is attached to the top of the antenn

Vladimir79 [104]

Answer:

163.8 ft

Explanation:

In triangle ABD

$AB$ = 155 ft

$Cos63 = \frac{BD}{AB} = \frac{BD}{155}\\BD = 155 Cos63 \\BD = 70.4 ft$

$Sin63 = \frac{AD}{AB} = \frac{AD}{155} \\AD = 166 Sin63\\AD = 148 ft$

Using Pythagorean theorem in triangle ADC

$AC^{2} = AD^{2} + DC^{2} \\175^{2} = 148^{2} + DC^{2} \\DC = 93.4 ft$

$d$ = distance between the anchor points

distance between the anchor points is given as

$d = BD + CD = 70.4 + 93.4\\d = 163.8 ft$

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3 years ago

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what are the 3 properties of components of the universe that can be determined using electromagnetic radiation?

stepan [7]

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