What point does the beam converge, Physics

Assignment Help:

Q. A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is (a)a convex lens of focal length 20cm, and (b)a concave lens of focal length 16 cm?

Answer

In the given circumstances the object is virtual and the image formed is real.

A Object distance u=+ 12cm

(a)Focal length of the convex lens f=20cm

Image distance=v

As-per to the lens formula we have the relation:

200_What point does the beam converge.png

As a result the image is formed7.5cmawayas of the lens toward its right.

(b)Focal length of the concave lens f=-16cm

Image distance=v

As-per to the lens formula we have the relation:

1772_What point does the beam converge1.png

Therefore the image is formed 48 cm away from the lens toward its right.


Related Discussions:- What point does the beam converge

Explain chemical potential of ideal gas, Explain Chemical Potential of Idea...

Explain Chemical Potential of Ideal Gas? Derive the expression for the chemical potential and Gibbs free energy of N molecules of an ideal gas at temperature T, pressure P and

Explain brewsters experiment, Explain Brewster's experiment and describe ho...

Explain Brewster's experiment and describe how Brewster's law was formulated.

Classical electrodynamics jackson, Hi Do you have expert can help me to sol...

Hi Do you have expert can help me to solve coupl problems from classical electrodynamics Jackson ch11 and ch12

Hvac, determine the pressure of a 20 lb force applied to an area of 10 inch...

determine the pressure of a 20 lb force applied to an area of 10 inch squared

What wavelength does the observer find in each case, A commuter train blows...

A commuter train blows its horn as it passes a passenger platform at a constant speed of 40.0m/s. The train horn sounds at a frequency of 305 Hz when the train is at rest. (a) W

The equation of reflected wave is, The equation of reflected wave for soft ...

The equation of reflected wave for soft boundary: y(x.t)=A cos[(wt-kx)] The equation of reflected wave for rigid boundary: y(x.t)=A cos[(wt+kx)] where A=amplitude of the wave

Self Gravitational PE, Self Gravitational Potential Energy of matter formin...

Self Gravitational Potential Energy of matter forming a thin uniform shell of mass M and radius R is-

Doppler effect, Draw a picture of a moving source and the waves surrounding...

Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wavefronts in front of the source comp

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd