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2 years ago

Which statement describes how rays behave when they travel through media during reflection and refraction?

Physics

2 answers:

OverLord2011 [107]2 years ago

8 0

Answer: I would say the first statement.

Explanation:

solmaris [256]2 years ago

8 0

Answer:

Lets say its A. During refraction, rays stay in the original medium, and during reflection, rays pass into a new medium.

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Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is λA = 622nm. The other wavelength is λ

Sergio039 [100]

Answer:

$\lambda_{B}=414.67 nm$

Explanation:

In this question we have given

$\lambda_{A}=622nm$

we have to find

$\lambda_{B}=?$

We know that

optical path difference for bright fringe is given as $=n\lambda$

Here,

n is order of fringe

and optical path difference for dark fringe is given as $=(n+.5)\lambda$

since the light with wavelength $\lambda_{A}$ produces its third-order bright fringe at the same place where the light with wavelength $\lambda_{B}$ produces its fourth dark fringe

it means

optical path difference for 3rd order bright fringe= optical path difference for forth order dark fringe

Therefore,

$3\lambda_{A}=(4+.5)\lambda_{B}$ ...............(1)

Put value of $\lambda_{A}$ in equation (1)

$3 \times 622=(4+.5)\lambda_{B}$

$1866=4.5\lambda_{B}$

$\lambda_{B}=414.67 nm$

3 0

2 years ago

Name arleady three types of energy associated with a microwave

Elena L [17]

I'm pretty sure what you are trying to ask for is radiative energy, light energy, and electronic energy
Radiative since the microwave is releasing radiation 
Light since there is light inside the microwave.
Electronic since it is plugged in and uses electricity.
You can also use sound, but I don't think every microwave makes sound.

6 0

2 years ago

Do electric field lines actually exist?

konstantin123 [22]

Answer: No

Explanation:they do not exist electric field lines are only imaginary

8 0

2 years ago

A machine has an efficiency of 20%. Find the input work if the output work is 140J.

Ilia_Sergeevich [38]

Ummmm I don’t know this sorry

3 0

2 years ago

A force of 500 N accelerates a 100 kg crate at a 2 m/s along a horizontal surface. What is the friction force acting on the obje

WITCHER [35]

$F_{net} = F_x - f_k$ . Your net force will be the crate's weight multiplied 2. and force in the x-direction will be 500N. You can then solve the equation for the friction force.

8 0

3 years ago