Ask Question, Ask an Expert


Ask Physics Expert

problem 1: Answer any four parts from the given problems.

a) The sodium lamp used in a physics laboratory gives out light uniformly. Assume that the lamp uses 60 W. Compute the magnitude of electric field.
b) describe polarization of light by reflection. How does degree of polarization differ with angle of incidence of light?
c) Describe the fundamental differences between holography and photography.
d) Depict spatial evolution of Fresnel diffraction pattern.
e) Discuss the concept of missing orders with particular reference to double slit diffraction pattern.

problem 2:

a) A laser beam is directed upward to make a tiny blackened glass sphere of mass 10−9 kg and diameter 20µm afloat in air. Compute the intensity of the laser beam.

b) Get the expression for shift in fringes when a thin transparent sheet is introduced in the path of one of the waves in a double slit interference experiment.

problem 3:

a) Describe Fraunhofer diffraction pattern produced by N identical vertical slits. Obtain expression for intensity distribution and plot it for N = 6 with a = 4b.

b) Consider a diffraction grating having 15000 lines to an inch. Compute the dispersion suffered due to diffraction by red (λR = 700nm) and violet (λV = 400 nm) colors in the first order spectrum when white light source is used to get diffraction pattern. How this spread is influenced in the second and third order spectra?

problem 4:

a) Describe Rayleigh’s criterion for resolving power of an optical instrument. Obtain an expression for resolving power of a microscope.

b) A typical thin film of refractive index 1.33 and thickness 5.1 x 10 m−6 is illuminated by a point source of while light. Light is made to fall:

i) Normally and at 60°.

Which colors will appear in the reflected light?

problem 5:

a) Describe three significant practical applications of holography.

b) Compute in ratio of stimulated emission and spontaneous emission at an operating temperature of 1100 K, if the wavelength of emitted light is 550 nm. Do such conditions correspond to a laser?

c) State the characteristics of different kinds of optical fibers. Depict their refractive index profiles and propagation of light via them.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M92521
  • Price:- $70

Priced at Now at $70, Verified Solution

Have any Question? 

Related Questions in Physics

1 ip coasting due west on your bicycle at 77 ms you

1. IP Coasting due west on your bicycle at 7.7 m/s , you encounter a sandy patch of road 7.7 m across. When you leave the sandy patch your speed has been reduced by 2.0 m/s to 5.7 m/s . a. Assuming the sand causes a cons ...

The bohr radius of the hydrogen atom is 0529 or 00529 nm

The Bohr radius of the hydrogen atom is 0.529 ?, or 0.0529 nm. Assuming that we know the position of an electron in this orbit to an accuracy of 1% of the radius, calculate the uncertainty in the velocity of the electron ...

A pilot flies out of cleveland and sets the compass of the

A pilot flies out of Cleveland and sets the compass of the plane due north. The pilot maintains an airspeed of 250km/h. After flying for 30 minutes the pilot finds that the plane is 200km north and 40 km west of the star ...

Consider the cmos inverter circuit shown in figure 116oa

Consider the CMOS inverter circuit shown in Figure 11.6Oa, Ideal n- and p-channel devices arc to be designed with channel lengths of L = 2.5 panda oxide thicknesses of I,,, = 450Å. Assume the inversion channel motilities ...

A wire of nichrome of length 80cm has a resistance of 50

A wire of nichrome of length 80cm has a resistance of 50 ohms. if the wire is four folded, find new resistance.

Consider the high-frequency c-v plot shown in figure 1165a

Consider the high-frequency C-V plot shown in Figure 11.65. (a) Indicate which points correspond to flat-band, inversion, accumulation, threshold, and depletion mode. (b) Sketch the energy band diagram in the semiconduct ...

Consider the stop-and-wait protocol as described in the

Consider the Stop-and-Wait protocol as described in the chapter. Suppose that the protocol is modified so that each time a frame is found in error at either the sender or receiver, the last transmitted frame is immediate ...

Q1 determine the nusselt number for fully developed flow

Q1. Determine the Nusselt number for fully developed flow and temperature profile in a plane duct (i.e. between two large parallel plates; see Fig. P5.2) for the case of the same constant wall heat flux in both walls Q2. ...

A an electric field of magnitude 4960 nc is applied along

a) An electric field of magnitude 4960 N/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.455 m wide and 0.46 m long if the plane is parallel to the yz plane. Answer in units of N· ...

Question 1 the article calls for public policy initiatives

Question 1: The article calls for public policy initiatives to address animal welfare and environmental concerns associated with dairy farming. With reference to economic concepts covered in this course, explain why the ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate