A point source of light is placed at a distance \( h \) below the s...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=mziSP0Aj76I


Duration: 9:48
8 views
1

A point source of light is placed at a distance \( h \) below the surface of a large deep lake. What is the percentage of light energy that escapes directly from the water surface? \( \mu \) of the water \( =4 / 3 ? \) ? (neglect
\( \mathrm{P} \) partial reflection)
(A) \( 50 \% \)
(B) \( 25 \% \)
(C) \( 20 \% \)
(D) \( 17 \% \)
W
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-03-20Li figure shown, pulleys are ideal. Initially the system is in equi...
2023-03-20A 1-kg block ' \( B \) ' rests as shown on a frictionless bracket '...
2023-03-20Consider the diagrams shown. In the first diagram, the beam converg...
2023-03-20A thin prism of angle \( 5^{\circ} \) is placed at a distance of \(...
2023-03-20A concave spherical surface of radius of curvature \( 10 \mathrm{~c...
2023-03-20Light ray is incident on a prism of angle \( \mathrm{A}=60^{\circ} ...
2023-03-20A ray incident at an angle \( 53^{\circ} \) on a prism emerges at a...
2023-03-20Figure represents a painter in a crate which hangs alongside a buil...
2023-03-20A 1-kg block ' \( B \) ' rests as shown on a frictionless bracket '...
2023-03-20You are designing an elevator for a hospital. The force exerted on ...
2023-03-20A point source of light is placed at a distance \( h \) below the s...
2023-03-20A beam of light is converging towards a point \( \mathrm{I} \). A p...
2023-03-20A small source of light is \( 4 \mathrm{~m} \) below the surface of...
2023-03-20A certain prism is found to produce a minimum deviation of \( 38^{\...
2023-03-20A beam of monochromatic light is incident at \( \mathrm{i}=50^{\cir...
2023-03-20In the figure \( \mathrm{ABC} \) is the cross section of a right an...
2023-03-20What should be i so that TIR occurs at the glass air interface P (A...
2023-03-20A ray of light strikes a cubical slab as shown in the figure. Then ...
2023-03-20A thermal power plant produces electric power of \( 600 \mathrm{~kW...
2023-03-20\( \mathrm{P} \) Unpolarized light is incident on a plane surface o...
2023-03-20A straight line joining the object point and image point is always ...


Tags:
pw