Question:
For Fresnel half period zones:
(A) The amplitude of disturbance is directly proportional to the area of the zone.
(B) The radii of half period zones are directly proportional to the square root of the natural number.
(C) The area of each zone is directly proportional to the wavelength of the light.
(D) The radii of half period zones are directly proportional to the square root of the wavelength of the light.
Choose the correct answer from the options given below:
For Fresnel half period zones:
(A) The amplitude of disturbance is directly proportional to the area of the zone.
(B) The radii of half period zones are directly proportional to the square root of the natural number.
(C) The area of each zone is directly proportional to the wavelength of the light.
(D) The radii of half period zones are directly proportional to the square root of the wavelength of the light.
Choose the correct answer from the options given below:
(A) The amplitude of disturbance is directly proportional to the area of the zone.
(B) The radii of half period zones are directly proportional to the square root of the natural number.
(C) The area of each zone is directly proportional to the wavelength of the light.
(D) The radii of half period zones are directly proportional to the square root of the wavelength of the light.
Choose the correct answer from the options given below:
Show Hint
Understanding the contributions of different zones helps in designing lenses and understanding diffraction effects in various media.
Updated On: Feb 11, 2026
- (A), (B), and (C) only
- (B), (C), and (D) only
- (A), (B), (C), and (D) only
- (A), (C), and (D) only
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Fresnel half period zones are used to describe the contribution of different portions of a wavefront to the intensity at a point in the wave’s path. Each successive zone contributes an equal phase shift but alternates in sign, effectively contributing to the constructive and destructive interference pattern:
- (A) True, as the amplitude of the disturbance from each zone is a function of its area.
- (B) True, as each zone’s radius increases with the square root of its order number.
- (C) True, the area and thus the impact of each zone varies with wavelength, affecting how the wavefront constructs or destructs at a point.
- (D) True, The radii of half period zones are directly proportional to the square root of the wavelength of the light.
Was this answer helpful?
0
0
Top CUET PG Geophysics Questions
- The shape of air film formed between the plano-convex lens and the glass slab in Newton’s ring experiment is
- Match List I with List II:Choose the correct answer from the options given below:
List I List II (A) The linear momentum of the system remains constant (IV) The net external force acting on a system of particles is zero (B) The angular momentum of the system remains constant (III) The external torque acting on a system of particles is zero (C) Inertial frame (I) The frames relative to which an unaccelerated body appears unaccelerated (D) Non-inertial frame (II) The frames relative to which an unaccelerated body appears accelerated - Match List I with List II:Choose the correct answer from the options given below:
LIST I LIST II A. Maxwell's First Equation I. Modified Ampere's Law B. Maxwell's Second Equation II. Faraday's Laws of Electromagnetic Induction C. Maxwell's Third Equation III. Gauss Law in Electrostatics D. Maxwell's Fourth Equation IV. Gauss Law in Magnetostatics - The efficiency of Carnot’s engine working between the steam point and the ice point is:
- Match List I with List II:Choose the correct answer from the options given below:
List I List II (A) (∂S/∂P)T (I) (∂P/∂T)V (B) (∂T/∂V)S (II) (∂V/∂S)P (C) (∂T/∂P)S (III) -(∂V/∂T)P (D) (∂S/∂V)T (IV) -(∂P/∂S)V
View More Questions
Top CUET PG Optics Questions
- The shape of air film formed between the plano-convex lens and the glass slab in Newton’s ring experiment is
- A Fraunhofer diffraction pattern is produced by a circular aperture of radius $0.05 \, \text{cm}$ at the focal plane of a convex lens of focal length $20 \, \text{cm}$. If the wavelength $\lambda = 5 \times 10^{-5} \, \text{cm}$, the radius of the first dark ring is:
- In a Fraunhofer N-slit diffraction experiment, a grating has $5000$ lines/cm, and monochromatic light of wavelength $5 \times 10^{-5}$ cm is used. What is the highest order spectrum that may be observed?
- The function f(x) is said to be piecewise continuous, if it satisfies the following conditions (Dirichlet conditions):
(A) The function must have a finite number of maxima and minima.
(B) The function must have a finite number of infinite discontinuities, in a period of one oscillation.
(C) The function must have an infinite number of maxima and minima.
(D) The function must have a finite number of finite discontinuities, in a period of one oscillation
Choose the correct answer from the options given below - Match List I with List II:Choose the correct answer from the options given below:
List I List II A. Fraunhofer Diffraction I. Interaction of the light waves from two different wave fronts. B. Fresnel Diffraction II. The distance between the source and the screen are effectively at infinite distance. C. Interference of Light III. It’s a phenomenon in which the wave vibrations are restricted to a particular direction in a plane. D. Polarization of Light IV. The source and screen or both are at finite distances from the aperture or obstacle.
View More Questions
Top CUET PG Questions
- Given below are two statements:
Statement I: For Plato the meaning of the word 'Justice' is basically a conception in the mind only.
Statement II: For Plato the meaning of the word 'Justice' is fixed, mind-independently
In the light of the above statements, choose the correct answer from the options given below: - What is the electron count of OS6CO182-?
- XeF4 hydrolysis gives A + B, HF, and Oxygen. Find A and B
- What is more basic in pyrol and pyridine?
- Hydrolysis of Al2C3, Be2?
View More Questions