Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. A person with a normal near point (25cm) using a compound microscope with objective of focal length 8.0mmandan eye piece of focal length 2.5cm can bring an object placed at 9.0mm from the objective in sharp focus. What is the separation between the two lenses? Calculate the magnifying power of the microscope.
Answer
A Focal length of the objective lens f o=8mm=0.8cm
A Focal length of the eye piece f e=2.5cm
An Object distance for the objective lens u o=-9.0mm=-0.9cm
The Least distance of distant vision d=25cm
An Image distance for the eyepiece ve=-d=-25cm
An Object distance for the eyepiece=μe
Utilizing the lens formula we can obtain the value of μe as
We can as well obtain the value of the image distance for the objective lens v0 using the lens formula.
The distance among the objective lens and the eyepiece =|ue|+v0
=2.27+7.2
=9.47 cm
A magnifying power of the microscope is calculated as:
Thus the magnifying power of the microscope is 88.
mole; mol The basic SI unit of substance, explained as the amount of substance which contains as many elementary units (molecules, atoms ions, etc.) as there are atoms in 0.01
Example of an impure spectrum
Write down the differential equation for a simple harmonic oscillator subjected to a damping force proportional to the velocity (v) of the oscillator and the periodic force of angu
What are the Electric Generators? An electric generator is a situation in which a loop of conducting wire rotates in an area with a magnetic field. During the first half of t
Plot the Bremsstrahlung emitted (intensity vs energy) from a copper target for (i) both 15 keV and 30 keV electrons, (ii) for 15 keV electrons at both 10 and 50 mA current and (iii
Calculate the current needed in a 240 mm length of conductor of a d.c. motor when the conductor is situated at right-angles to the magnetic field of flux density 1.25T, if a force
Explain the Adding Waves? When two waves come from the same light source, the light waves are coherent, meaning that the phase difference between the waves is constant in time.
In the Compton effect, a photon of wavelength l collides with a stationary electron. The wavelength of the emitted photon is: a) longer than l b) shorter than l c)
D- Ultrasonic wave Heating These waves are different from electromagnetic waves . It produces mechanical vibration inside tissue. It is the same as the sound waves but it has
history
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd