Optics Answers

1. An electron in a uniform electric field experiences a force of4.0×10^-11.what are the magnitude and direction of E at this point?

1) Derive an expression for the width of the depletion region in terms of Vbi and the

maximum electric field |𝐸𝑚| at x = 0

2) Derive an expression for xp in terms of Vbi. Hence, find a numerical value for |𝐸𝑚| and the width of the depletion region

A parallel film of sodium light of wavelength

5880Å is incident on a thin glass plate of μ=1.5 such that

the angle of refraction in the plate is 60o. Calculate the

smallest thickness of the plate which will make it appear

dark at reflection.

ASSERTION (A): IN CASE OF REFRACTION OF LIGHT THROUGH A GLASS SLAB , ANGLE OF INCIDENCE IS EQUAL TO ANGLE OF EMERGENCE .

REASON (R):A GLASS SLAB IS A CUBOID MADE UP OF A GLASS IN WHICH REFRACTION OCCURS FROM THE CORRESPONDING PARALLEL SURFACES.

CHOOSE THE CORRECT OPTION:

(A).BOTH (A) AND (R) ARE TRUE AND (R) IS THE CORRECT EXPLANATION OF (A)

(C).(A) IS TRUE BUT (R) IS FALSE .

(D).(A) IS FALSE BUT (R) IS TRUE

A prism has a refracting angle of 60 degrees and a refractive index of 1.60. calculate the angle of incidence on the first face for a ray that is just totally reflected at the second face of the prism

A prism has a refracting angle of 60° and a refractive index of 1.60. Calculate the angle of incidence on the first face for a ray that is just totally reflected at the second face of the prism. 

A ray is incident at 30° to the normal of a flat piece of uniformly thick glass, as shown in the figure below. If the refractive index of glass is 1.66,

(a)   What is the angle of refraction in the glass?                     [2]

(b)   What is the angle at which the ray emerges from the glass?            [3]

A damped harmonic oscillator given with parameters (m, ω0, β) is subjected to external force of F(t) = f0 sin(ωt). Find out the expression for phase in the oscillation. Plot the phase as a function of driving frequency. 

Rezultati prijevoda

The photometric radiation equivalent Kcd is defined for monochromatic radiation with a frequency of 540 THz. What wavelength and what color is this light? 1. Enter the calculation and 2. explain how you determined the color of the light. 3. What is the wavelength range visible to the human eye?3.1 Which colors correspond to the wavelengths at the edge of the range?