The work function for \( \mathrm{Al}, \mathrm{K} \) and \( \mathrm{Pt} \) is \( 4.28 \mathrm{eV}...

Channel:
Subscribers:
445,000
Published on ● Video Link: https://www.youtube.com/watch?v=SfuT7KxJZd0



Duration: 1:25
0 views
0


The work function for \( \mathrm{Al}, \mathrm{K} \) and \( \mathrm{Pt} \) is \( 4.28 \mathrm{eV} \), \( 2.30 \mathrm{eV} \) and \( 5.65 \mathrm{eV} \) respectively. Their respective
P threshold frequencies would be

W
(a) \( \mathrm{Pt}\mathrm{Al}\mathrm{K} \)
(b) \( \mathrm{Al}\mathrm{Pt}\mathrm{K} \)
(c) \( \mathrm{K}\mathrm{Al}\mathrm{Pt} \)
(d) \( \mathrm{Al}\mathrm{K}\mathrm{Pt} \)
πŸ“²PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2022-12-02In question number 70 , what is the frequency of photon? \( \mathrm{P} \) (a) \( 3.1 \times 10^{...
2022-12-02Consider four conducting materials copper, tungsten, mercury and aluminium with resistivity \( \...
2022-12-02Two identical photocathodes receive light of frequencies \( v_{1} \) and \( v_{2} \). If the vel...
2022-12-02Space between two concentric spheres of radii \( r_{1} \) and \( r_{2} \), such that \( r_{1}r_{...
2022-12-02In the question number 33 , find the wavelength of the incident light if the stopping potential ...
2022-12-02A photon of energy \( E \) ejects a photoelectron from a metal surface whose work function is \(...
2022-12-02\( 50 \mathrm{~W} / \mathrm{m}^{2} \) energy density of sunlight is normally incident on the sur...
2022-12-02Light incident normally on a plane mirror attached to a galvanometer coil reflects backward as s...
2022-12-02Transformer is used to (a) convert ac to \( \mathrm{dc} \) voltage \( \mathrm{P} \) (b) convert ...
2022-12-02The photoelectric threshold wavelength for silver is \( \lambda_{0} \). The energy of the electr...
2022-12-02The work function for \( \mathrm{Al}, \mathrm{K} \) and \( \mathrm{Pt} \) is \( 4.28 \mathrm{eV}...
2022-12-02The magnetic field in a travelling electromagnetic wave has a peak value of \( 20 \mathrm{nT} \)...
2022-12-02An ac source is of \( \frac{200}{\sqrt{2}} \mathrm{~V}, 50 \mathrm{~Hz} \). The value of \( \mat...
2022-12-02In a circuit a cell with internal resistance \( r \) is P connected to an external resistance \(...
2022-12-02In the given potentiometer circuit length of the wire \( A B \) is \( 3 \mathrm{~m} \) and resis...
2022-12-02In the series combination of two or more than two resistances \( \mathrm{P} \) (a) the current t...
2022-12-02Four wires of the same diameter are connected, in turn, between two points maintained at a const...
2022-12-02Consider two conducting spheres of radii \( R_{1} \) and \( R_{2} \) with \( R_{1}R_{2} \). If t...
2022-12-02Four points \( a, b, c \) and \( d \) are set at equal distance from the centre of a dipole as s...
2022-12-02\( \mathrm{P} \) W (a) \( T_{1}T_{2} \) (b) \( T_{1}T_{2} \) (c) \( T_{1}=T_{2} \) (d) \( T_{1}=...
2022-12-02A parallel plate capacitor is filled by a dielectric whose relative permittivity varies with the...



Tags:
pw