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Rufina [12.5K]
2 years ago
11

How many times does the light reflect before exiting the space between the two mirrors?

Physics
1 answer:
rjkz [21]2 years ago
6 0

Infinite times does the light reflect before exiting the space between the two mirrors.

Light reflection

Light reflects from a smooth surface at the same angle as it hits the surface. For a smooth surface, reflected light rays travel in the same direction. This is called specular reflection. For a rough surface, reflected light rays scatter in all directions. This is called diffuse reflection.

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. This is called specular reflection.

To learn more about light reflection refer here:

brainly.com/question/27922546

#SPJ4

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A light source radiates 60.0 W of single-wavelength sinusoidal light uniformly in all directions. What is the average intensity
umka21 [38]

Answer: 29.85\ W/m^2

Explanation:

Given

Power P=60\ W

Distance from the light source r=0.4\ m

Intensity is given by

I=\dfrac{P}{4\pi r^2}

Inserting values

\Rightarrow I=\dfrac{60}{4\pi (0.4)^2}\\\\\Rightarrow I=\dfrac{60}{2.010}\\\\\Rightarrow I=29.85\ W/m^2

3 0
3 years ago
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3 What is the displacement of a satellite when it makes a complete round along its circular path?​
kirill [66]

Answer:

0

Explanation:

The displacement is zero since it goes in a full circle and ends up where it started.

4 0
2 years ago
A rope attached to a load of 175 kg bricks Ilifts the bricks with a steady acceleration of 0.12.m/s^2 straight up. What is the t
andrew-mc [135]

Answer:

Tension, T = 1736 N

Explanation:

It is given that,

Mass of bricks, m = 175 kg

A rope is attached to a load of 175 kg bricks lifts the bricks with a steady acceleration of 0.12 m/s² in vertically upwards direction. let T is the tension in the rope. Using second equation of motion as :

T - mg = ma

T = ma + mg

T = m(a + g)

T = 175 kg ( 0.12 m/s² + 9.8 m/s² )

T = 1736 N

Hence, the tension in the wire is 1736 N.

4 0
3 years ago
Read 2 more answers
A 0.015 kg marble sliding to the right at 22.5 cm/s on a frictionless surface makes an elastic head-on collision with a 0.015 kg
slava [35]

Answer:

Explanation:

mass of first marble m_1=m=0.015\ kg

Initial velocity of the first marble u_1=22.5\ m/s

considering right side as positive

Mass of second marble

m_2=m=0.015\ kg\\u_2=-18\ cm/s

After collision first marble moves to the left with a velocity of 18 cm/s

i.e. v_1=-18\ cm/s

considering v_2 be the velocity of second marble after collision

The Coefficient of restitution is 1 for an elastic collision

e=\frac{v_2-v_1}{u_1-u_2}

Putting values

1=\frac{v_2-(-18)}{22.5-(-18)}\\22.5+18=v_2+18\\v_2=22.5\ m/s

So, the velocity of the second marble is 22.5 m/s to the right after the collision

(b)Initial kinetic energy =0.5\times 0.015\times (22.5\times 10^{-2})^2+0.5\times 0.015\times (18\times 10^{-2})^2=6.22\times 10^{-4}\ J

Final kinetic energy=

0.5\times 0.015\times (18\times 10^{-2})^2+0.5\times 0.015\times (22.5\times 10^{-2})^2=6.22\times 10^{-4}\ J

6 0
3 years ago
A 20 kg box rests on the ground. Round all answers to the hundredths, if necessary. What is the weight of the box?​
cricket20 [7]
  • Mass=m=20kg
  • Acceleration due to gravity=10m/s^2

Weight=Applied force

\\ \sf\longmapsto F=mg

\\ \sf\longmapsto F=20(10)

\\ \sf\longmapsto F=200N

5 0
3 years ago
Read 2 more answers
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