will report wrong answers.
1. FILL IN THE BLANKS WITH SUITABLE PREPOSITION.
1. She has an aptitude .... .science. 2. She deals antique furniture.
3. Never deviate ....... the path of truth and virtue.
4. Don't brood ....... your past failures.
5. She is always busy ........ something or the other.
Calculate the kinetic energy of the electron emitted by an atom by 400 nm light
when its threshold wavelength is 600 nm.
(h = 6.63 x 10-34 Js and c = 3 × 108 ms-1)