SATHEE: Atomic Structure 1 Question 29

Atomic Structure 1 Question 29

5. Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?

(2019 Main, 10 Jan I)

(b)

Show Answer

Answer:

Correct Answer: 5. (b)

Solution:

For photoelectric effect,

$KE = E - E_{0}$

where,

$\begin{aligned} KE & = Kinetic energy of ejected electrons. E & = Energy of incident light = h ν E_{0} & = Threshold energy = h v_{0} v & = Frequency of incident light v_{0} & = Threshold frequency \end{aligned}$

Slope $= \pm 1$ , intercept $= - E_{0}$

So, option (a) is correct.

(ii) $KE$ of ejected electrons does not depend on the intensity of incident light.

So, option (b) is correct.

(iii) When, number of ejected electrons is plotted with frequency of light, we get

So, option (c) is also correct.

(iv) $KE = h v - h v_{0}$

Slope $= + h$ , intercept $= - h v_{0}$ . So, option (d) is not correct.

Atomic Structure 1 Question 29

5. Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

Atomic Structure 1 Question 29

5. Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

Menu