1.7V
2.0V
8.0V
15.0V
Correct answer is B
\(V_8 \frac{hf - w_o}{e} = \frac{5.0 \times 1.60 \times 10^{-19} - 3.0 \times 1.6 \times 10^{-19}}{1.6 \times 10^{-19}} = 2.0V\)
As a bicycle Tyre was being pumped up, it was noticed that contrary to Boyle's law the volume in...
A radioactive source emits X–rays of very short wavelength (10 -13m ). what is the frequency&n...
Which of the following particles/rays do not originate from the nucleus of an atom? ...
Water of mass 120g at 50°C is added to 200g of water at 10°C and the mixture is well stirred...
A safety precaution designed to prolong the life of a lead acid accumulator is ...
Which of the following is true of sounds? ...
In the normal use of a simple microscope, a person sees an ...