This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A double-convex lens is formed from a piece of plastic with an index of refraction of 1.70. The ... (Read 102 times)

HudsonKB16

  • Hero Member
  • *****
  • Posts: 535
on: Jul 29, 2018
A double-convex lens is formed from a piece of plastic with an index of refraction of 1.70. The radius of the front surface has magnitude 20 cm, and the radius of the back surface has magnitude 30 cm. What is the focal length of this lens?
 
  A) 86 cm B) -86 cm C) 43 cm D) -17 cm E) 17 cm

Question 2

At point P the magnetic field due to a long straight wire carrying a current of 2.0 A is 1.2 T. How far is P from the wire? (0 = 4  10-7 T  m/
 
  A)
  A) 11 cm
  B) 22 cm
  C) 33 cm
  D) 44 cm
  E) 55 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

elyse44

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

C


HudsonKB16

  • Hero Member
  • *****
  • Posts: 535
Reply #2 on: Jul 29, 2018
Thanks


elyse44

  • Sr. Member
  • ****
  • Posts: 319
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

A space-filling model of the DNA double helix A space-filling model of the DNA double helix
The Nucleus Is Enclosed by a Double Membrane The Nucleus Is Enclosed by a Double Membrane
The effect of a double bond on the shape of fatty acids The effect of a double bond on the shape of fatty acids
Many plastic intake manifolds are constructed using many parts glued together to form complex ... Many plastic intake manifolds are constructed using many parts glued together to form complex ...
Ice island formed after breakup Ice island formed after breakup
Steps in homologous recombination repair of double-stranded breaks Steps in homologous recombination repair of double-stranded breaks
Video: Graded potentials - electrical characteristics and types

For a complete list of videos, visit our video library