Nuclear Physics and RadioactivityMedium
Question
In a photoelectric experiment, with light of wavelength λ the fastest electron has speed v. If the wavelength is changed to 
, the speed of the fastest emitted electron will becomes
, the speed of the fastest emitted electron will becomes Options
A.v 
B. v 
C.less than v
D.v 
greater than v
greater than v Solution
= 
+ 
mv2 ; 
= + mv12⇒ 0 =
= + 
⇒
mv12 = 
⇒ v1 > v 
Create a free account to view solution
View Solution FreeMore Nuclear Physics and Radioactivity Questions
A radioactive element X disintegrates into a stable element Y with half life 2 year. A fresh sample of X is available at...The magnetic Resonance Imaging (MRI)is based on the phenomenon of...The atomic weight of boron is 10.81 g/mole and it has two isotopes 105B and 115B. The ratio (by number) of 105B : 115B i...Mass number and atomic number of radioactive material are respectively 232 and 90. After disintegration mass number is 2...The graph of ln (R/R0) versus ln A (R = radius of a nucleus and A = its mass number) is...