Register
compute the position and the focal lenght of a converging lens of which will profuce the image of a lamp magnified 4 times on a screen 10cm from the lamp
97.3k views
4 votes
compute the position and the focal lenght of a converging lens of which will profuce the image of a lamp magnified 4 times on a screen 10cm from the lamp

User Arash Afsharpour
by
6.4k points

1 Answer

3 votes
M=v/u
V=-4v
-5u=10
U=-2
V =8cm
1/f=1/8+1/2=1+4/8=5/8
F=8/5 M=1.6

Answer f= 1.6m
User Mokk
by
5.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.3m questions

9.7m answers

Other Questions

What is the meant by the frequency of a wave? What is the unit?
Is this true or false ethics deals with morals and values and can be measured and tested using the scientific method. Thank you for answering and your help
How many newtons of force would 200 grams apply? What would be the mass of an object that weights 7 N on earth? If an object weights 450 N. How much does it weight in pounds?
An 800kg roller coaster starts from top of a 45m hill with a velocity of 4m/s. The car travels to the bottom, through a loop, and continues up the next hill. The end of the roller coaster has a level surface
What forms of energy are produced by a violin
Link Copied!