swarnims swarnims

01-07-2017
Physics

contestada

A ray of light makes an angle of 10° with the horizontal above it and strikes a plane mirror which is inclined at an angle O to the horizontal. The angle O for which the reflected ray becomes vertical is (a) 40°. (B)50°. (C)80°. (D) 100°

Respuesta :

AJGreen AJGreen

01-07-2017

180 - (40 * 2) = 100°

So the answer is (D) 100°

Hope this helps! :)

Answer Link

Otras preguntas

a.malunggay at santolb.malunggay at narra c.malunggay at avocadod.langka at ipil ipil

Environmental-protection laws are good for the economy because they do what? O A. Safeguard resources needed for future production B. Make businesses more energ

Can you guys help me with this assignment

make my homework for 50 points!

you lost your school bag in english day .you not sure where a

A book fair worker needs to place 2,204 books on displays with 58 books on each display how many displays are needed to hold all the books

44 is 25% of what? I don’t get this math

Water shortage is a problem and many countries are trying to find solution to save water and reduce wastage. What is the UAE doing to solve this issue. Paragrap

Answer the question below

Help, please!!! In Exercises 9 and 10, determine whether the domain is discrete or continuous. Explain.