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3 years ago

Which kind of wave interaction is shown?

Physics

2 answers:

Evgesh-ka [11]3 years ago

7 0

Yo my knowledge, refraction.

Free_Kalibri [48]3 years ago

6 0

Answer : (C) refraction.

Explanation :

This figure shows the refraction of light. Refraction of light is the phenomena in which light rays bend at the boundary of two medium.

When a light ray moves from denser to rarer medium then it will bend away from the normal line.

And if it moves from rarer to denser medium then it will bend toward the normal line.

Refraction of light depends on the refractive index of the medium.

So, the correct option is (C) "refraction"

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Klio2033 [76]

Answer:

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Explanation:

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4 years ago

A skier (m=59.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 3

marissa [1.9K]

Answer:

35.20 m

Explanation:

By the law of conservation of energy we have,

$mg(H-h)=\frac{1}{2}mv^2$

$g(H-h)=\frac{1}{2}v^2$

$\Rightarrow H=\frac{v^2}{2g}+h$

where m= mass of the skier, h= 3.00 m

D= horizontal distance=13.9 m

H= maximum height attained

Also, the horizontal distance covered by the skier is

D=vt

$=v\frac{2g}{h}$

$\Rightarrow v^2=\frac{gD^2}{2h}$

thus, height H in terms of D is given by

$H=\frac{D^2}{2h}+h$

$H=\frac{13.9^2}{2\times3}+3$

H=35.20 m

4 0

3 years ago

7. An object can be accelerating even if its speed is

steposvetlana [31]

Answer:

I think that the answer might be d

4 0

3 years ago

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A 62 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 12 m. She falls a total of 3

Andrew [12]

Answer:

k = 104.46 N/m

Explanation:

Here we can use energy conservation

so we will have

initial gravitational potential energy = final total spring potential energy

as we know that she falls a total distance of 31 m

while the unstretched length of the string is 12 m

so the extension in the string is given as

$x = L - L_o$

$x = 31 - 12 = 19 m$

so we have

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3 years ago

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RSB [31]

Answer:

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Explanation:

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3 years ago

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