Question

Statement 1:
The wavelenght equivalent of 1eV is $1.24\times {10}^{-6}$metre.
and
Statement 2:
1 Electron volt is the energy imparted to an electron accelerated by a potential difference of 1 volt.

• A. Statement 1 is True, Statement 2 is True; statement 2 is correct explanation for statement 1.
• B. Statement 1 is True, Statement 2 is True; statement 2 is not a correct explanation for statement 1.
• C. Statement 1 is True, Statement 2 is False.
• D. Statement 1 is False, Statement 2 is True.

Answer 1

Answer: (A)

Statement 1 is True, Statement 2 is True; statement 2 is correct explanation for statement 1.

Use the formula $E=hc/\lambda$ for calculating wavelength.