Q. No.| 1. | \(13.6~\text{eV}+2.2~\text{eV}\) |
| 2. | \((10.2+2.2)~\text{eV}\) |
| 3. | \((3.4+2.2)~\text{eV}\) |
| 4. | \((1.89+2.2)~\text{eV}\) |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
varies with large \(n\) as:
1. \(\dfrac{1}{n}\)
2. \(\dfrac{1}{n^2}\)
3. \(\dfrac{1}{n^4}\)
4. \(n^0,\text{ constant}\)
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
1. \(\lambda_{ph}=\lambda_e\)
2. \(\lambda_{ph}<\lambda_e\)
3. \(\lambda_{ph}>\lambda_e\)
4. any of the above may be true
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| 1. | a straight line passing through the origin. |
| 2. | a circle. |
| 3. | an ellipse. |
| 4. | a parabola. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| 1. | \(\lambda_A=\lambda_B\) only if \(m_A=m_B\) |
| 2. | \(\lambda_Am_A=\lambda_Bm_B\) |
| 3. | \(\Large\frac{\lambda_A}{m_A}=\frac{\lambda_B}{m_B}\) |
| 4. | \(\lambda_A=\lambda_B,\) independent of \(m_A\) or \(m_B\) |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| 1. | \(\propto\lambda_B\) | 2. | \(\propto{\Large\frac{1}{\lambda_B}}\) |
| 3. | \(\propto\lambda_B^{~2}\) | 4. | \(\propto{\Large\frac{1}{\lambda_B^{~2}}}\) |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
1. \(101~\text{eV}\)
2. \(3~\text{eV}\)
3. \(4~\text{eV}\)
4. \(5~\text{eV}\)
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| 1. | Increase in intensity of light |
| 2. | Increase in accelerating voltage |
| 3. | Decrease in the wavelength of light |
| 4. | Decrease in the intensity of light |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| 1. | does not depend on \(v\) |
| 2. | increases as \(v\) increases |
| 3. | decreases as \(v\) increases |
| 4. | first increases and then decreases as \(v\) is increased |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
© 2025 GoodEd Technologies Pvt. Ltd.