MHT CET 2024 10th May Evening Shift | Dual Nature of Radiation Question 45 | Physics

When a photosensitive surface is irradiated by lights of wavelengths ' $\lambda_1$ ' and ' $\lambda_2$ ', kinetic energies of the emitted photoelectrons is ' $E_1$ ' and ' $E_2$ ' respectively. The work function of the photosensitive surface is

$\frac{\left(E_2 \lambda_2-E_1 \lambda_1\right)}{\left(\lambda_2-\lambda_1\right)}$

$\frac{\left(E_1 \lambda_1+E_2 \lambda_2\right)}{\left(\lambda_2-\lambda_1\right)}$

$\frac{\left(E_1 \lambda_1-E_2 \lambda_2\right)}{\left(\lambda_2-\lambda_1\right)}$

$\frac{\left(E_2 \lambda_2+E_1 \lambda_1\right)}{\left(\lambda_1-\lambda_2\right)}$

MHT CET 2024 10th May Morning Shift

MCQ (Single Correct Answer)

-0

In photoelectric effect, the photocurrent

decreases with increase in frequency of incident photon.

increases with increase in frequency of incident photon.

does not depend on the frequency of photon but depends only on the intensity of incident light.

depends both on intensity and frequency of incident radiation.

MHT CET 2024 10th May Morning Shift

MCQ (Single Correct Answer)

-0

If the potential difference used to accelerate electrons is increased four times, by what factor does the de-Broglie wavelength associated with the electrons change?

Wavelength increased two times

Wavelength decreased to half

Wavelength increased four times

Wavelength remains the same

MHT CET 2024 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Using Einstein's photoelectric equation, the graph between kinetic energy of emitted photoelectrons and the frequency of incident radiation is shown correctly by graph

MHT CET 2024 9th May Evening Shift Physics - Dual Nature of Radiation Question 49 English

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