KCET 2021 | Dual Nature of Radiation Question 13 | Physics

According to Einstein's photoelectric equation to the graph between kinetic energy of photoelectrons ejected and the frequency of incident radiation is

KCET 2021 Physics - Dual Nature of Radiation Question 15 English Option 1

KCET 2021 Physics - Dual Nature of Radiation Question 15 English Option 2

KCET 2021 Physics - Dual Nature of Radiation Question 15 English Option 3

KCET 2021 Physics - Dual Nature of Radiation Question 15 English Option 4

KCET 2020

MCQ (Single Correct Answer)

-0

A hot filament liberates an electron with zero initial velocity. The anode potential is $$1200 \mathrm{~V}$$. The speed of the electron when it strikes the anode is

$$1.5 \times 10^5 \mathrm{~ms}^{-1}$$

$$2.5 \times 10^6 \mathrm{~ms}^{-1}$$

$$2.1 \times 10^7 \mathrm{~ms}^{-1}$$

$$2.5 \times 10^8 \mathrm{~ms}^{-1}$$

KCET 2020

MCQ (Single Correct Answer)

-0

The de-Broglie wavelength associated with electron of hydrogen atom in this ground state is

0.3 $$\mathop A\limits^o$$

3.3 $$\mathop A\limits^o$$

6.26 $$\mathop A\limits^o$$

10 $$\mathop A\limits^o$$

KCET 2020

MCQ (Single Correct Answer)

-0

The following graph represents the variation of photocurrent with anode potential for a metal surface. Here $$I_1, I_2$$ and $$I_3$$ represents intensities and $$\gamma_1, \gamma_2, \gamma_3$$ represent frequency for curves $$1,2$$ and $$3$$ respectively, then

KCET 2020 Physics - Dual Nature of Radiation Question 12 English

$$\gamma_1=\gamma_2$$ and $$I_1 \neq I_2$$

$$\gamma_1=\gamma_3$$ and $$I_1 \neq I_3$$

$$\gamma_1=\gamma_2$$ and $$I_1=I_2$$

$$\gamma_2=\gamma_3$$ and $$I_1=I_3$$

Previous Next

Questions Asked from MCQ (Single Correct Answer)

KCET 2025 (2) KCET 2024 (2) KCET 2023 (3) KCET 2022 (3) KCET 2021 (3) KCET 2020 (3) KCET 2019 (2) KCET 2018 (3) KCET 2017 (2)

KCET Subjects