A filter transmits only the radiation of wavelength $\geq 440$ nm. Radiation from a hydrogen discharge tube goes through such a filter and is incident on a metal of work function $2.0 e V$ . Find the stopping potential which can stop

1.4 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.3 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.85 V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.55 V

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is C 0.55 V
$H_{β}$ line has wavelength

$λ = \frac{1240}{2.55} = 486.1 n m$

Apply $e V_{s} = h f - ϕ$
$= 2.55 - 2.0 = 0.55 e V$
$V_{s} = 0.55 V$
So, the answer is option (D).

Suggest Corrections

Similar questions

Q. A filter transmits only the radiation of wavelength greater than 440 nm. Radiation from a hydrogen-discharge tube goes through such a filter and is incident on a metal of work function 2.0 eV. Find the stopping potential which can stop the photoelectrons.

Q. A filter transmits only radiation of wavelength greater than 440 nm. Radiation from a hydrogen discharge tube goes through such a filter and it’s incident on a metal of work function 1.8 eV. Find the stopping potential (in V) which can stop the photoelectrons. (Answer upto 2 decimal places)

A filter transmits only the radition of wavelength greater than 440 nm. Radition from a hydrogen discharge tube goes through such a filter and is incident on a metal of work function 2.0 e V. Find the stopping potential which can stop the photoelectrons.

Q. Radiation from a hydrogen discharge tube with energy of photons

\leq 13.6 eV

goes through a filter which transmits only waves of wavelength greater than

4400 ˚ A

and is incident on a metal of work function

2.0 eV .

Its stopping potential is

n \times 10^{- 2} V .

The value of

n

is (integer only)
[Use

h c = 12400 eV (˚ A)

]

Q. Radiation of wavelength 155 nm is incident on Li metal with work function 5.0 eV. The stopping potential will be

Join BYJU'S Learning Program

A filter transmits only the radiation of wavelength ≥440 nm. Radiation from a hydrogen discharge tube goes through such a filter and is incident on a metal of work function 2.0 eV. Find the stopping potential which can stop

The correct option is C 0.55 VHβ line has wavelengthλ=12402.55=486.1nmApply eVs=hf−ϕ=2.55−2.0=0.55eVVs=0.55VSo, the answer is option (D).

A filter transmits only the radiation of wavelength $\geq 440$ nm. Radiation from a hydrogen discharge tube goes through such a filter and is incident on a metal of work function $2.0 e V$ . Find the stopping potential which can stop

The correct option is C 0.55 V
$H_{β}$ line has wavelength

$λ = \frac{1240}{2.55} = 486.1 n m$

Apply $e V_{s} = h f - ϕ$
$= 2.55 - 2.0 = 0.55 e V$
$V_{s} = 0.55 V$
So, the answer is option (D).