Questions · Page 2 of 2

1 Marks Question

Question 511 Mark
Which of the following radiations are:
  1. Heat radiation,
  2. Used for long distance transmission? Infrared rays, gamma rays, ultraviolet rays, microwaves.
Answer
Infrared rays are heat radiation, Microwaves are used for long distance transmission.
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Question 521 Mark
Identify the part of the electromagnetic spectrum to which the following wavelengths belong:
  1. 1mm
  2. 10-11m
Answer
  1. Wavelength 1mm belongs to the microwaves.
  2. Wave length 10-11m = 0.1A belongs to gamma rays.
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1 Marks Question - Page 2 - Physics STD 12 Science Questions - Vidyadip