Friday First Batch 1 questions Live Photo electrons are emitted with maximum energy of 2.20...

Friday First Batch 1 questions Live
Photo electrons are emitted with maximum energy of
2.20 x 10-19 J from a metal surface. What is the stopping potential of the electrons? [1eV= 1.6 x 10-19J]

(A) 1.60V

(B) 1.50V

(C) 1.40V

(D) 1.55V

The conductivity of gases at low pressure can be termed as

I. Hot cathode emission

II. Thermionic emission

III. Cold cathode emission

IV. Field emission

V. Photoelectric emission

(A) II and III

(B) III and IV

(C) I and II

(D) IV and V

The thermometric property of mercury is best on the change in

(A) resistance with temperature

(B) pressure with temperature

(C) density with temperature

(D) Volume with temperature?

In Physics
1 Answers Available
Asked by Chinenye on 25th April, 2025