Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Physics Atoms X Rays and the Ordering of the Elements

निम्नलिखित में से किसमें x-किरणों की तरंग दैर्ध्य सबसे बड़ी भेदन शक्ति होती है?

1
2 Å
2
4 Å
3
8 Å
4
16 Å
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