JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
A point like object is placed at a distance of \(1\, m\) in front of a convex lens of focal length \(0.5\, m .\) A plane mirror is placed at a distance of \(2\,m\) behind the lens. The position and nature of the final image formed by the system is
- A \(1\, m\) from the mirror, virtual
- B \(1\, m\) from the mirror, real
- C \(2.6\, m\) from the mirror, real
- D \(2.6\, m\) from the mirror, virtual
Answer & Solution
Correct Answer
(C) \(2.6\, m\) from the mirror, real
Step-by-step Solution
Detailed explanation
Object is at \(2 f\). So image will also be at \(2 f\). \(\left( I _{1}\right)\) Image of \(I_{1}\) will be \(1\, m\) behind mirror. i.e. \(\Rightarrow I _{2}\) Now \(I \)\(_{2}\) will be object for lens. \(\therefore u \Rightarrow-3 m\) \(f \Rightarrow+0.5 m\)…
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
- Identify the logic operation performed by the given circuit
JEE Mains 2022 Medium - A gas mixture consists of \(3\,moles\) of oxygen and \(5\,moles\) or argon at temperature \(T.\) Considering only translational and rotational modes, the total internal energy of the system isJEE Mains 2019 Medium
- A bar magnet of length \(14 \,cm\) is placed in the magnetic meridian with its north pole pointing towards the geographic north pole. A neutral point is obtained at a distance of \(18\, cm\) from the center of the magnet. If \(B _{ H }=0.4 \,G ,\) the magnetic moment of the magnet is \(\left(1\, G =10^{-4} T \right)\)JEE Mains 2021 Hard
- If the collision frequency of hydrogen molecules in a closed chamber at \(27^{\circ} \mathrm{C}\) is \(\mathrm{Z}\), then the collision frequency of the same system at \(127^{\circ} \mathrm{C}\) is _______.JEE Mains 2024 Hard
- In an experiment with photoelectric effect, the stopping potential,JEE Mains 2025 Medium
- A moving coil galvanometer allows a full scale current of \(10^{-4}\, A\). A series resistance of \(2\, M\,\Omega \) is required to convert the above galvanometer into a voltmeter of range \(0 -5\, V\). Therefore the value of shunt resistance required to convert the above galvanometer into a ammeter of range \(0-10\, mA\) is....\(\Omega \)JEE Mains 2019 Medium
More PYQs from JEE Mains
- By what percentage will the illumination of the lamp decrease if the current drops by \(20 \%\) ?JEE Mains 2024 Hard
- A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) are kept at room temperature \(\left(27^{\circ} \mathrm{C}\right)\). The ratio of specific heat of gases at constant volume respectively is _______.JEE Mains 2024 Hard
- If the constant term in the binomial expansion of \(\left(\sqrt{x}-\frac{k}{x^{2}}\right)^{10}\) is \(405,\) then \(|k|\) equalsJEE Mains 2020 Medium
- A \(2\,meter\) long scale with least count of \(0.2\,cm\) is used to measure the locations of objects on an optical bench. While measuring the focal length of a convex lens, the object pin and the convex lens are placed at \(80\,cm\) mark and \(1\,m\) mark, respectively. The image of the object pin on the other side of lens coincides with image pin that is kept at \(180\,cm\) mark. The \(\%\) error in the estimation of focal length isJEE Mains 2023 Hard
- The square of the distance of the point \(\left(\frac{15}{7}, \frac{32}{7}, 7\right)\) from the line \(\frac{x+1}{3}=\frac{y+3}{5}=\frac{z+5}{7}\) in the direction of the vector \(\hat{i}+4 \hat{j}+7 \hat{k}\) is :JEE Mains 2025 Medium
- Two point dipoles of dipole moment \({\vec P_1}\) and \({\vec P_2}\) are at a distance \(x\) from each other and \({\vec P_1}\) || \({\vec P_2}\). The force between the dipoles isJEE Mains 2013 Medium