Biology, asked by Umapathi7929, 1 year ago

Who discovered electron microscope –
(a) Robert Hooke
(b) Schleiden & Schwann
(c) Watson & Crick
(d) Knol & Ruska

Answers

Answered by rs3063685

0

Answer:

d=Knoll and Ruska

Explanation:

question of 9th class

Answered by amna

0

Answer:

(D) Knoll and Ruska

Explanation:

They developed it in 1931.

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