Question No 29. Coolis tube is used to produce:
- 1) Radio waves
- 2) Microwaves
- 3) X-rays
- 4) Gamma rays
General Science Questions have been taken from previous years question papers of different competitive examinations such SSC CGL, SSC CHSL, CDS, NDA, Bank, State PSC, Railways, MAT, CAT, etc.
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