General Science Parashravy Tarangon Ki avriti . . . . . .

Q.10478: पराश्रव्य तरंगों की आवृत्ति . . . . . .
A
B
C
D
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By Anonymous

20000h

By Anonymous

Nfh

By Anonymous

Option ABC Is correct

By Anonymous

this question 4 option but 4 out off 3 option are same so the candidate does not chose the correct answer

By Anonymous

Savi option AK saman hai

By Anonymous

All ans. Is same a to c


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