« previous next »

Author Question: A magnifying glass produces an angular magnification of 7. What is the focal length of this lens if ... (Read 26 times)

pragya sharda

  • Hero Member
  • *****
  • Posts: 566
on: Jul 29, 2018
A magnifying glass produces an angular magnification of 7. What is the focal length of this lens if a person whose near point is 28 cm reads a book using this magnifying glass?
 
  A)
 
  2 cm
  B)
 
  3 cm
  C)
 
  4 cm
  D)
 
  5 cm
  E)
 
  6 cm

Question 2

An element with atomic number 6 undergoes - decay. Its atomic number is now
 
  A)
 
  7.
  B)
 
  6.
  C)
 
  5.
  D)
 
  3.
  E)
 
  2.


Expo

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

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?

There are 20 feet of blood vessels in each square inch of human skin.

Independent assortment produces 50 percent recombinants Independent assortment produces 50 percent recombinants
Mixing bacterial genotypes produces rare recombinants Mixing bacterial genotypes produces rare recombinants
Use fingertips to apply friction to muscle attachments along inferior length of the clavicle. Use fingertips to apply friction to muscle attachments along inferior length of the clavicle.
The allowable compressive bearing capacity of a soil is 8000 psf. What should be the length of ... The allowable compressive bearing capacity of a soil is 8000 psf. What should be the length of ...
An aluminum wire has a length of 27.0 m and a resistance of 2.90 n at 20.00C. As An aluminum wire has a length of 27.0 m and a resistance of 2.90 n at 20.00C. As
A simple pendulum of length 2.5 m m makes 5.0 complete swings in 16 s s . What is the ... A simple pendulum of length 2.5 m m makes 5.0 complete swings in 16 s s . What is the ...
Video: Appendicitis Animation

For a complete list of videos, visit our video library