subject
Physics, 20.01.2020 09:31 sandy6265

Which of the following changes would increase the focal length of a lens? a) decrease rodius of curvature of surfoce c) increase index of refraction of lens material. d) use red colored lens material b) increase radius of curvature of surface

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 03:00
Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c
Answers: 2
question
Physics, 22.06.2019 12:00
Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.
Answers: 1
question
Physics, 22.06.2019 14:40
Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?
Answers: 3
question
Physics, 22.06.2019 16:30
Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.
Answers: 1
You know the right answer?
Which of the following changes would increase the focal length of a lens? a) decrease rodius of cur...
Questions
question
Mathematics, 23.02.2021 19:50
question
English, 23.02.2021 19:50
question
Mathematics, 23.02.2021 19:50
question
Mathematics, 23.02.2021 19:50
question
Computers and Technology, 23.02.2021 19:50
question
Health, 23.02.2021 19:50
Questions on the website: 13722367