Would someone me out with this question?

  • Thread starter Thread starter yabadabado111
  • Start date Start date
AI Thread Summary
An object is visible when the light hitting it is reflected, and the discussion focuses on whether this reflection is even or uneven. The consensus leans towards unevenly reflected light, as rough surfaces scatter light in various directions, making the object visible. In contrast, smooth surfaces reflect light more uniformly, concentrating it. The distinction between the two types of reflection is crucial for understanding visibility. Ultimately, uneven reflection allows for better visibility of objects due to the scattering of light.
yabadabado111
Messages
1
Reaction score
0
Would someone please help me out with this question?

You can see an object when the light hitting it is?

Unevenly reflected

Evenly reflected

I know it's not the other two(absorbed or transmitted), but I am stumped between these two.
I know it's reflected, but some sources say each. :smile:Nevermind, I think it is Unevenly reflected
 
Last edited:
Physics news on Phys.org
A rough surface is uneven - lots of little surfaces pointing in all different directions. A smooth surface have lots of small surfaces pointing mostly in the same direction - very little protrusions or indentations. Smooth surfaces concentrate light while rough surfaces scatter incoming light in different directions.
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

What does it mean that when light is reflected the "wavelengths of each contributing hue are subtracted"?
Replies
16
Views
1K
Optical path difference between two reflected rays
Replies
4
Views
699
Acoustics type question on reflection....
Replies
1
Views
1K
Reflectivity coefficient of a composition of layers
Replies
1
Views
964
Why does a traveling wave pulse get distorted?
Replies
17
Views
2K
Effect on visibility of thin films due to interference
Replies
35
Views
3K
Circular fringes in a Fabry-Perot Interferometer
Replies
2
Views
3K
EM Wave Reflection and Transmission Between 3 Materials
Replies
12
Views
2K
How does reflection affect the intensity of the microwave?
Replies
2
Views
3K
Can Multiple Reflections Be Eliminated Using A-Mode Imaging in Ultrasound?
Replies
35
Views
3K

Hot Threads

Recent Insights

Back
Top