WBCS.LIVE practice question
প্রথম কোন বিজ্ঞানী ক্যাথোড রশ্মি ব্যবহার করেছিলেন?
Solve this multiple-choice question and check the correct answer with its explanation below.
Answer options
Correct answer and explanation
Correct answer: জে.জে. থমসন
WBCS.LIVE practice question
Solve this multiple-choice question and check the correct answer with its explanation below.
Correct answer: জে.জে. থমসন