Question:
The shape of air film formed between the plano-convex lens and the glass slab in Newton’s ring experiment is
The shape of air film formed between the plano-convex lens and the glass slab in Newton’s ring experiment is
Show Hint
Newton’s rings result from the interference of light in the wedge-shaped air gap between the lens and the glass plate.
Updated On: Jan 6, 2025
- Rectangular shape
- Uniform thickness
- Wedge shape
- No air film is formed
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
When a plano-convex lens is placed on a glass slab, an air film is formed which is wedge-shaped. The film thickness gradually changes from the point of contact (negligible thickness) outward.
Was this answer helpful?
0
0
Top Questions on Optics
- In Michelson Interferometer, the distance traversed by the mirror between two successive disappearances is $0.289 \, \text{mm}$. The difference between the wavelengths of two lines is (Assume the wavelength of one line is $5890 \, \text{\AA}$):
- For Newton’s Ring Experiment:
(A) The condition to get constructive interference is 2nt = (m + 1/2),m = 0,1,2,..., where n is the refractive index of the film and t is the thickness of the film.
(B) The condition to get destructive interference is 2nt = mx,m = 0,1,2,..., where n is the refractive index of the film and t is the thickness of the film.
(C) The condition to observe the colored ring, the source of light should be polychromatic.
(D) The condition to observe the colored ring, the source of light should be monochromatic.
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: - 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
Questions Asked in CUET PG exam
- What is the oxidation state of Pd in [Pd(OAc)2]?
- CUET (PG) - 2024
- Organometallic Compounds
- The Lanthanide contraction from Ce to Lu is
- CUET (PG) - 2024
- Lanthanoids and Actinides
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below:- CUET (PG) - 2024
- Lanthanoids and Actinides
- Mg-ATP complex is a substrate for
- CUET (PG) - 2024
- Bioinorganic Chemistry
- Cytochrome C is a/an
- CUET (PG) - 2024
- Bioinorganic Chemistry
View More Questions