बोलोमीटर का प्रयोग किसे मा – McqOptions

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1.	बोलोमीटर का प्रयोग किसे मापने के लिये किया जाता है -
A.	तरंगदैर्ध्य
B.	तापमान
C.	आवृत्ति
D.	वेग
Answer» C. आवृत्ति

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