The long bones are hollow and connected by air passages in (1)Reptiles (2)Land vertebrates (3)Aves (4)Mammals
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Answered by
0
Answer:
Solution :
We know that
hv=hv0+KE
or v0=v-
KE
h
KE=1.3×10-19J,v=5.2×1014s-1,h=6.626×10-34Js
:. Theshold frequency
v0=5.2×1024s-1-
1.3×1019J
6.626×10-34Js
=5.2×1014s-1-1.96×1014s-1
3.24×1014s-1
Answered by
0
Answer:
option (2)....
its Land vertebrates.
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