Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 General Science Chemistry Organic Chemistry

The wavelength of an electron accelerated by a potential difference of 500 V is: 

1
5.5 × 10-11 m
2
3.89 × 10-11 m
3
5.5 × 10-10 m
4
3.89 × 10-10​ m
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