Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science Cerification Guide: Certification Test 1973

Uses of Radioisotopes Notes App & e-Book: MCQ 1973

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MCQ: 1973

The rays that can penetrate into metal are

  1. x-rays
  2. ultra violet rays
  3. gamma rays
  4. radio waves

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Uses of Radioisotopes Cerification Guide: Class 7 Science App & eBook Notes

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