SVD when calculated for a corpus of similar category?

Hello everybody,

I have a doubt regarding SVD. Suppose i compute SVD for a huge corpus
of similar category, and i have the decomposition as [USV^T] . Are the
singular values in the diagonal matrix S arranged in descending order
along the diagonal will be very near to each other? i mean , is the
numerical difference between one singular value and the next in the
diagonal will be negligible?. I would be thankful for the response...

.

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