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Physics — Test 13

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Question 1
Geiger counter is suitable for _________________?
Question 2
An alpha particle can produce fluorescence in__________________?
Question 3
Pair production cannot take place in a vacuum as ________ is not conserved ?
Question 4
CFC is used in _________________?
Question 5
Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?
Question 6
Which one of the following possesses greater penetration power ?
Question 7
The most useful tracer is_________________?
Question 8
X-rays are electromagnetic waves like________________?
Question 9
The charge on beta particle is________________?
Question 10
Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?