COMEDK · Physics · 25. Ray Optics
If an equiconvex lens is made of number of layers of different refractive index for a given wavelength as shown in the figure, then number of images formed for an object kept in front is

- A only 1
- B 2
- C 2.5
- D 5
Answer & Solution
Correct Answer
(B) 2
Step-by-step Solution
Detailed explanation
Given materials of \(\mu_1\) and \(\mu_2\) refractive indices are used to form lens. So, corresponding to these, there are two focal lengths of lens. Thus, the number of images formed will be 2 .
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Insulators can be charged by which of the following process?COMEDK 2021 Easy
- In the figure, pendulum bob on left side is pulled a side to a height \(h\) from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass. After the collision, the two bobs stick ogether and rise to a height
COMEDK 2023 Hard - A metal rod of susceptibility 799 is subjected to a magnetising field of \(2000 \mathrm{Am}^{-1}\). The permeability of the material of the rod is: (Given \(\mu_0=4 \pi \times 10^{-7} \mathrm{TmA}^{-1}\) )COMEDK 2025 Easy
- A \(10 \mu \mathrm{F}\) capacitor is charged to \(10 \mathrm{~V}\) and disconnected from the battery. If another uncharged \(10 \mu \mathrm{F}\) capacitor is connected across it in parallel, then the voltage across the combination will beCOMEDK 2012 Easy
- If \(P=Q=R=10 \Omega\) and \(S=20 \Omega\), then what resistance should be joined with \(S\) to balance the Wheatstone's network?COMEDK 2020 Easy
- A beam of light parallel to the principal axis of a concave and convex lens, first passes through the concave lens of focal length 0.5 m and then through the convex lens of focal length 1.75 m . If the lenses are placed 1.25 apart, which of the given statement is true?COMEDK 2025 Medium
More PYQs from COMEDK
- The value of \(\Delta G^{\circ}\) for the phosphorylation of glucose in glycolysis is \(13.8 \mathrm{~kJ} / \mathrm{mol}\). The value of \(K_{C}\) at \(298 \mathrm{~K}\) isCOMEDK 2021 Medium
- Identify the correct values to be plotted in the graph, the slope of which can be used to determine the activation energy of a reaction.COMEDK 2026 Medium
- An electron has a mass of \(9.1 \times 10^{-31} \mathrm{~kg}\). It revolves round the nucleus in a circular orbit of radius \(0.529 \times 10^{-10} \mathrm{~m}\) at a speed of \(2.2 \times 10^6 \mathrm{~ms}^{-1}\). The magnitude of its angular momentum isCOMEDK 2024 Easy
- \(8^{3 \log _{8} 5}\) is equal toCOMEDK 2021 Easy
- If the matrix \(M = \begin{bmatrix} x+5 & a & -4 \\ -2 & 0 & b \\ c & 6 & y+1 \end{bmatrix}\) is a skew symmetric matrix, the value of the expression \(ab + c^2 - xy\) is:COMEDK 2026 Easy
- Let \(P Q R\) be a right angled isosceles triangle, right angled at \(P(2,1)\). If the equation of \(Q R\) is \(2 x+y=3\), then the combined equation of the lines \(P Q\) and \(P R\) isCOMEDK 2017 Medium