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: Mar 17, 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
- A double convex lens of glass has both faces of the same radius of curvature 17 cm. Find its focal length if it is immersed in water. The refractive indices of glass and water are 1.5 and 1.33 respectively.
- The distance of an object from the first focal point of a biconvex lens is \( X_1 \) and distance of the image from second focal point is \( X_2 \). The focal length of the lens is:
- Name the type of lenses required by the persons for the correction of their defect of vision called presbyopia. Write the structure of the lenses commonly used for the correction of this defect giving reason for such designs.
A slanted object AB is placed on one side of convex lens as shown in the diagram. The image is formed on the opposite side. Angle made by the image with principal axis is:
- A convex lens of focal length 10 cm, a concave lens of focal length 15 cm, and a third lens of unknown focal length are placed coaxially in contact. If the focal length of the combination is +12 cm, find the nature and focal length of the third lens, if all lenses are thin. Will the answer change if the lenses were thick?
View More Questions
Questions Asked in CUET PG exam
- Arrange the following events related to India-Pakistan relations in a chronological order.
A. Operation Gibraltar
B. Kargil War
C. Karachi Agreement
D. Indus Water Treaty
- CUET (PG) - 2025
- India’s Foreign Policy
- Arrange the correct sequence of stages of mitosis:
A. Metaphase
B. Anaphase
C. Prophase
D. Interphase
E. Telophase
Choose the correct answer from the options given below:
- CUET (PG) - 2025
- Cell Biology
- Which one will replace the question mark?
- CUET (PG) - 2025
- Logical Reasoning
- The following table shows the total number of people who were stuck in traffic jam while going to their office on working days of a week due to construction of a flyover. Table also shows the ratio of male to female among them. Find the average number of females who were stuck in traffic on working days.
- What is the least number which, when divided by 7, 12 and 15 leaves 1 as the remainder in each case?
- CUET (PG) - 2025
- LCM and HCF
View More Questions