When monochromatic radiation of intensity $I$ falls on a metal surface, the number of photoelectrons and their maximum kinetic energy are $N$ and $K$ respectively. If the intensity of radiation is $2I$, the number of emitted electrons and their maximum kinetic energy are respectively
When monochromatic radiation of intensity $I$ falls on a metal surface, the number of photoelectrons and their maximum kinetic energy are $N$ and $K$ respectively. If the intensity of radiation is $2I$, the number of emitted electrons and their maximum kinetic energy are respectively
- [AIPMT 2010]
- A
$N $ and $2K$
- B
$2N$ and $ K$
- C
$2N $ and $2K$
- D
$N$ and $K$
Similar Questions
A point source of light is used in an experiment on photoelectric effect. Which of the following curves best represents the variation of photo current $(i)$ with distance $(d)$ of the source from the emitter
A point source of light is used in an experiment on photoelectric effect. Which of the following curves best represents the variation of photo current $(i)$ with distance $(d)$ of the source from the emitter
Match the column
$(A)$ Hallwachs $\&$ Lenard
$(P)$ Transformers
$(B)$ Franck-Hertz
$(Q)$ Microwave
$(C)$ Klystron valve
$(R)$ Quantization of energy levels
$(D)$ Nicola Tesla
$(S)$ Photoelectric effect
Match the column
| $(A)$ Hallwachs $\&$ Lenard | $(P)$ Transformers |
| $(B)$ Franck-Hertz | $(Q)$ Microwave |
| $(C)$ Klystron valve | $(R)$ Quantization of energy levels |
| $(D)$ Nicola Tesla | $(S)$ Photoelectric effect |
Photon and electron are given same energy $({10^{ - 20}}J)$. Wavelength associated with photon and electron are ${\lambda _{Ph}}$ and ${\lambda _{el}}$ then correct statement will be
Photon and electron are given same energy $({10^{ - 20}}J)$. Wavelength associated with photon and electron are ${\lambda _{Ph}}$ and ${\lambda _{el}}$ then correct statement will be
If mean wavelength of light radiated by $100 W$ lamp is $5000 \mathring A$, then number of photons radiated per second are
Photo cell is a device to
Photo cell is a device to