Q. Remote-sensing device has an inbuilt source of

  • (A) g-ray
  • (B) X-ray
  • (C) ultraviolet ray
  • (D) infrared ray
✅ Correct Answer: (D) infrared ray

Published by Ram Sharma ⭐ 193.88K Points at 03-Apr-2022 07:38 pm in Physics

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