JEE Mains 1-Feb-2023 Shift 1 Solved Paper

(A) Ve=1000m∕ s;h=6×10−34‌Js;
‌me=9×10−31‌kg
‌λ=‌

h

mv

=‌

6×10−34

9×10−31×1000

=666.67×10−9m
‌=666.67‌nm
(B) The characteristic of electrons emitted is independent of the material of the electrodes of the cathode ray tube.
(C) The cathode rays start from cathode and move towards anode.
(D) The nature of the emitted electrons is independent on the nature of the gas present in cathode ray tube.