
Assertion: In the process of photoelectric emission, all the emitted photoelectrons have the same kinetic energy.
Reason: The photon transfers its whole energy to the electron of the atom in photoelectric effect.
A. Both assertion and reason are correct and reason is the correct explanation for assertion.
B. Both assertion and reason are correct but reason is not the correct explanation for assertion.
C. Assertion is correct but Reason is incorrect.
D. Assertion is incorrect but the reason is correct.
E. Both assertion and reason are incorrect.
Answer
163.5k+ views
Hint: For solving this question we have to understand the total concept of photoelectric emission because if we do not know what photoelectric effect is we will not be able to solve this question. Photoelectric effect is defined as the emission of electrons when electromagnetic radiation, such as light, hits a material and these electrons are called photoelectrons.
Complete step by step solution:
From the definition of the photoelectric effect we can understand that the process of photoelectric emission has some kinetic energy but this kinetic energy is observed on the metal surface and inside the metal the energy becomes low since that energy is lost by collision with other atoms in the metal. So, all the emitted photoelectrons do not possess the same kinetic energy, which means the assertion here is incorrect.
Now, let us talk about the reason. The reason is that the photon transfers its whole energy to the electron of the atom in photoelectric effect which is true. This means the assertion is incorrect and the reason is correct.
Hence, the correct answer is option D.
Note: Photoelectric effect is a well known effect when it comes to explain photo emission. When there is light incident on a metal surface that metal surface emits photoelectrons which are also known as photons.
Complete step by step solution:
From the definition of the photoelectric effect we can understand that the process of photoelectric emission has some kinetic energy but this kinetic energy is observed on the metal surface and inside the metal the energy becomes low since that energy is lost by collision with other atoms in the metal. So, all the emitted photoelectrons do not possess the same kinetic energy, which means the assertion here is incorrect.
Now, let us talk about the reason. The reason is that the photon transfers its whole energy to the electron of the atom in photoelectric effect which is true. This means the assertion is incorrect and the reason is correct.
Hence, the correct answer is option D.
Note: Photoelectric effect is a well known effect when it comes to explain photo emission. When there is light incident on a metal surface that metal surface emits photoelectrons which are also known as photons.
Recently Updated Pages
JEE Main 2021 July 25 Shift 1 Question Paper with Answer Key

JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Main 2025 Session 2: Exam Date, Admit Card, Syllabus, & More

JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Trending doubts
Degree of Dissociation and Its Formula With Solved Example for JEE

Charging and Discharging of Capacitor

Instantaneous Velocity - Formula based Examples for JEE

Formula for number of images formed by two plane mirrors class 12 physics JEE_Main

In which of the following forms the energy is stored class 12 physics JEE_Main

JEE Main Chemistry Question Paper with Answer Keys and Solutions

Other Pages
Three mediums of refractive indices mu 1mu 0 and mu class 12 physics JEE_Main

Total MBBS Seats in India 2025: Government College Seat Matrix

NEET Total Marks 2025: Important Information and Key Updates

Neet Cut Off 2025 for MBBS in Tamilnadu: AIQ & State Quota Analysis

Karnataka NEET Cut off 2025 - Category Wise Cut Off Marks

NEET Marks vs Rank 2024|How to Calculate?
