Questions · Page 2 of 2

1 Marks Question

Question 511 Mark
Name the electromagnetic waves that have frequencies greater than those of ultraviolet light but less than those of gamma rays.
Answer
X-ray.
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Question 521 Mark
Name the part of the electromagnetic spectrum of wavelength 10-2m and mention its one application.
Answer
Microwave.
Application: Used in RADAR system for aircraft navigation.
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Question 531 Mark
Experimental observations have shown that X-rays:
  1. Travel in vacuum with a speed of 3 × 108ms-1.
  2. Exhibit the phenomenon of diffraction and can be polarised.
What conclusion can be drawn about the nature of X-rays from each of these observations?
Answer
  1. X-rays are electromagnetic waves.
  2. X-rays are transverse in nature.
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1 Marks Question - Page 2 - Physics STD 12 Science Questions - Vidyadip