Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

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

A yam is put in a hot oven maintained at a constant

A yam is put in a hot oven, maintained at a constant temperature 200°C. At time t = 30 minutes, the temperature T of the yam is 120° and is increasing at an (instantaneous) rate of 2°/min. Newton's law of cooling (or, in ...

Give the effective self-exciting capacitance at 1900 rpm

Give the effective self-exciting capacitance at 1900 rpm and 60 Hz of an induction generator having a rated self-exciting capacitance of 180 μF and a load connected across its terminals of RL = 50 Ω and L = 0.05 H. What ...

Derive the ideal soliton distribution at the first

Derive the ideal soliton distribution. At the first iteration (t = 0) let the number of packets of degree d be h 0 (d); show that (for d > 1) the expected number of packets of degree d that have their degree reduced to d ...

What are the essential conditions for corrosion if

What are the essential conditions for corrosion? If corrosion occurs, which element is eaten away, the anode or the cathode? Will an uncoated ASTM A325 bolt act as an anode or a cathode? What combination of factors can l ...

What is the error in the boltzmann approximation if the

What is the error in the Boltzmann approximation if the crystal size is not infinite but contains 10 2 , 10 3 , 10 4 , 10 5 , 10 6 , 10 9  atoms? This is a very real situation in submicron transistors In which an active ...

1 an n-type si crystal 1017nbspdonorcm3 contains

1. An n-type Si crystal (10 17  donor/cm 3 ) contains 10 15  Au/cm 3 . What are the low level and high level lifetimes of electrons and holes in this sample? 2. Use the analysis procedure and physical model of the therma ...

Dry air flowing at a velocity of 15 ms enters a 6-mlong

Dry air, flowing at a velocity of 1.5 m/s, enters a 6-mlong, 0.15-m-diameter tube at 310 K and 1:013 × 10 5  Pa. The inner surface of the tube is lined with a felt material (diameter-to rough ness ratio, D/e, of 10,000) ...

Why is it important to study global demographywhat are the

Why is it important to study global demography? What are the forces behind population change? Malthusian Theory: A flawed prediction, or a premonition of times to come? 300 words min. NO PLAGIARISM PLEASE.

A small can of radius r70cm and height h100cm is suspended

A small can of radius r=7.0cm and height h=10.0cm is suspended by a string in a beaker of water so that it's depth is 15cm below the surface. the can is heavy enough that it would sink if it were not tied to the string.( ...

A if you jump out of an airplane without a parachute you

(a) If you jump out of an airplane without a parachute, you fall faster and faster until air resistance causes you to approach a steady velocity, called the terminal velocity. Sketch a graph of your velocity against time ...

  • 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

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen