10th Class
Science
Sources of Energy
Question Bank
Sources of Energy
question_answer
The photoelectric threshold of a certain metal is \[\text{3}000\,\overset{\text{o}}{\mathop{\text{A}}}\,\] . If the radiation of\[\text{2}000\,\overset{\text{o}}{\mathop{\text{A}}}\,\] is incident on the metal, then