RPET Physics Solved Paper 2013
26. Question
Which of the following radiation series is found in visible region?
Answer
27. Question
The half-life period of a radioactive substance is 140 days. After how much time 15 g will decay from 16 g sample of it?
Answer
28. Question
Ozone layer blocks the radiation of wavelength
Answer
29. Question
What is the shortest wavelength emitted by an X-rays tube if 50 kV is applied across it?
Answer
30. Question
The nature of binding for a crystal with alternate and evenly spaced positive and negative ions is
Answer
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