Question
The best suitable metal for photoelectric effect is:
✓
Answer
- Cesium
Photoelectric effect occurs easily if the metal has low ionization potential cesium, the alkali metal has low ionization potential, hence it is best suitable for photoelectric effect.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A constant current is flowing through a long straight conductor, then the graph showing change in produced magnetic field B with distance r is:
As an electron makes a transition from an excited state to the ground state of a hydrogen - like atom/ion?
Two identical current carrying coaxial loops, carry current $I$ in an opposite sense. A simple amperian loop passes through both of them once. Calling the loop as $C:$
→A capacitor of 4μ F is connected as shown in the circuit (Fig.). The internal resistance of the battery is 0.5Ω. The amount of charge on the capacitor plates will be:
Which of the following will produce maximum electromotive force?
The relative permittivity $(\in_{r})$ of a medium is :
→Consider the situation shown in figure. If the switch is closed and after some time it is opened again, the closed loop will show:
- An anticlockwise current-pulse.
- A clockwise current-pulse.
- An anticlockwise current-pulse and then a clockwise current-pulse.
- A clockwise current-pulse and then an anticlockwise current-pulse.
A charged particle $q$ is shot towards another charged particle $Q$ which is fixed, with a speed $v$. It approaches $Q$ upto a closest distance $r$ and then returns. If $q$ were given a speed $2v,$ the closest distances of approach would be
→The magnifying power of a simple microscope can be increased if we use an eyepiece of:
For which nucleus will the value of binding energy per nucleon be maximum?