Question:
In a Newton’s rings experiment (using light of free space wavelength 580nm), there is an air gap of height d between the glass plate and a plano-convex lens (see figure). The central fringe is observed to be bright.
The least possible value of d (in nm) is:
In a Newton’s rings experiment (using light of free space wavelength 580nm), there is an air gap of height d between the glass plate and a plano-convex lens (see figure). The central fringe is observed to be bright.
The least possible value of d (in nm) is:
The least possible value of d (in nm) is:
Updated On: Nov 24, 2024
- 145
- 290
- 580
- 72.5
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The correct option is (A): 145
Was this answer helpful?
1
0
Top Questions on Modern Physics
- From the statements given below :
(A) The angular momentum of an electron in nth orbit is an integral multiple of h.
(B) Nuclear forces do not obey inverse square law.
(C) Nuclear forces are spin dependent.
(D) Nuclear forces are central and charge independent.
(E) Stability of nucleus is inversely proportional to the value of packing fraction.
Choose the correct answer from the options given below :- JEE Main - 2024
- Physics
- Modern Physics
- One mole of an ideal monoatomic gas is heated in a closed container, first from 273K to 303K, and then from 303K to 373K. The net change in the entropy is ______R. (Rounded off to two decimal places) (R is the ideal gas constant)
- IIT JAM - 2024
- Physics
- Modern Physics
- The energy equivalent of 1g of substance is:
- JEE Main - 2024
- Physics
- Modern Physics
- Two sources of light emit with a power of 200 W.The ratio of number of photons of visible light emitted by each source having wavelengths 300 nm and 500 nm respectively, will be :
- JEE Main - 2024
- Physics
- Modern Physics
- A hydrogen atom is bombarded with electrons accelerated through a potential difference of \( V \), which causes excitation of hydrogen atoms. If the experiment is being performed at \( T = 0 \, \text{K} \), the minimum potential difference needed to observe any Balmer series lines in the emission spectra will be\[\frac{\alpha}{10} V,\]where \( \alpha = \, \underline{\hspace{2cm}} \).
- JEE Main - 2024
- Physics
- Modern Physics
View More Questions
Questions Asked in IIT JAM exam
- Two sides of a triangle OAB are given by:
\(\overrightarrow{𝑂𝐴} = 𝑥̂ + 2𝑦̂ + 𝑧̂ \)
\(\overrightarrow{𝑂B}= 2𝑥̂ − 𝑦̂ + 3𝑧̂ \)
The area of the triangle is _______. (Rounded off to one decimal place)- IIT JAM - 2024
- Mathematical Methods
- When a system of multiple long narrow slits (width 2µm and period 4µm) is illuminated with a laser of wavelength 600nm. There are 40 minima between the two consecutive principal maxima observed in its diffraction pattern. Then maximum resolving power of the system is _______
- IIT JAM - 2024
- kinetic theory
- The value of the line integral for the vector,
\(\overrightarrow𝑣=2𝑥̂ +𝑦𝑧 ^2𝑦̂ +(3𝑦+𝑧 ^2 )𝑧̂ \)
along the closed path OABO (as shown in the figure) is:
(Path AB is the arc of a circle of unit radius)- IIT JAM - 2024
- Mathematical Methods
- A vector field is expressed in the cylindrical coordinate system (s, ϕ, z) as,
\(\overrightarrow𝐹=\frac{𝐴}{𝑠} 𝑠̂+ \frac{𝐵}{𝑠} 𝑧̂. \)
If this field represents an electrostatic field, then the possible values of A and B, respectively, are:- IIT JAM - 2024
- Mathematical Methods
- If the electric field of an electromagnetic wave is given by,
𝐸⃗ = (4𝑥̂ + 3𝑦̂)𝑒 𝑖(𝜔𝑡+𝑎𝑥−600𝑦)
then the value of a is: (all values are in the SI units)- IIT JAM - 2024
- Electricity
View More Questions