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ololo11 [35]
3 years ago
11

Band of colors produced when white light is separated into all its colors

Physics
1 answer:
Anika [276]3 years ago
5 0
Color spectrum, that rainbow of colors that appears when white light is refracted into a prism to separate all colors of visible light. Basically a rainbow.
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two flat mirrors are connected to each other such that they make an angle of ψ. a laser enters the system and first reflects off
Firdavs [7]

The angle is 53.5 degrees.

What is a flat mirror?

A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence.

This ques have been solved in two steps:

Step 1:

given that;

Θ=107 degrees

from figure,

∠BAC=180-ψ-(90-φ)

∠BAC= 90-ψ-φ

∠AOC=180-2(ψ-φ)-2φ

∠AOC=180-2φ

Step 2: part(a)

writing an expression for the psi at point o:

Θ+180-2ψ=180

2ψ=Θ

ψ=Θ/2

above is the expression for ψ

Step 3: part(b)

The angle of ψ is,

ψ=Θ/2

ψ=107/2

ψ=53.5 degrees

Hence, the angle is 53.5 degrees.

To more know about flat mirrors and phi and psi angles the link is given below:

brainly.com/question/15970406?

#SPJ4

7 0
2 years ago
The overall charge of an ionic compound is ______________. a. always positive b. usually positive c. usually negative d. usually
telo118 [61]

Answer:

d. usually neutral

Explanation:

The overall charge of an ionic compound is usually neutral.

There is no net charge on the compound formed by an ionic bond due to the electrical stability that is derived from this bond association.

In an ionic bond, a metal transfers some of its electrons to a non-metal. The metal is electropositive and the non-metal is electronegative.

Therefore, the result is that two ions are produced which attracts each other with an electrostatic force.

7 0
3 years ago
Ice cube is dropped into a glass of water. Describe the motion of the ice cube and explain why it moves this way
krek1111 [17]
The motion of the ice cube: falling. it falls because you move it with force and drop it that makes it fall.
3 0
4 years ago
Read 2 more answers
At what distance of separation, or, must two 5.87*10^-8 coulomb charges be positioned in order for the repulsive force between t
kupik [55]

Explanation:

r^2= 9×10^9 × 5.87×5.87×10^-16 / 64.9

=47.7× 10^-8

so taking sq. root

r = 6.9 ×10^-4 m

or

r= 6.9×10^ -2 cm

this gives the required seperation

3 0
3 years ago
A 2-m long string is stretched between two supports with a tension that produces a wave speed equal to vw=50.00m/s. What are the
svetoff [14.1K]

Answer

given,

Length of the string, L = 2 m

speed of the wave , v = 50 m/s

string is stretched between two string

For the waves the nodes must be between the strings

the wavelength  is given by

           \lambda = \dfrac{2L}{n}

where n is the number of antinodes; n = 1,2,3,...

the frequency expression is given by

            f = n\dfrac{v}{2L}

now, wavelength calculation

      n = 1

           \lambda_1 = \dfrac{2\times 2}{1}

                    λ₁ = 4 m

      n = 2

           \lambda_2 = \dfrac{2\times 2}{2}

                   λ₂ = 2 m

      n =3

           \lambda_3 = \dfrac{2\times 2}{3}

                    λ₃ = 1.333 m

now, frequency calculation

      n = 1

            f = n\dfrac{v}{2L}

            f_1 =1\times \dfrac{50}{2\times 2}

                    f₁ = 12.5 Hz

      n = 2

            f = n\dfrac{v}{2L}

            f_2 =2\times \dfrac{50}{2\times 2}

                    f₂= 25 Hz

      n = 3

            f = n\dfrac{v}{2L}

            f_3 =3\times \dfrac{50}{2\times 2}

                    f₃ = 37.5 Hz

8 0
3 years ago
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